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Featured Products

Hat - Fortress Clothing

Hat

This outdoor hat is designed to provide optimal protection during various activities. Its construction ensures durability and comfort, allowing for extended wear in diverse weather conditions. The hat is suitable for hiking, camping, and other outdoor pursuits, enhancing your experience by shielding you from...
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Cloud - Fortress Clothing
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Cloud - Cobalt

The Cloud Jacket is your perfect balance of lightweight comfort and serious warmth. Built with ultra-soft materials and Patented insulation, it wraps you in cloud-like coziness without the bulk. Ideal for everyday wear, chilly adventures, or lounging in warmth. Temp Rating: 15˚F to 70˚F –...
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Terra Hoodie - Fortress Clothing
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Terra Hoodie

Terra Hoodie — Warm Where You Need It Most Built for work, adventure, and everyday wear, the Terra Hoodie delivers targeted warmth without bulk or restriction. Key Features Insulated Core – Patented AERIS™ keeps your torso warm Lightweight Sleeves & Hood – Breathable, flexible...
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Polar Puff - Fortress Clothing
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Polar Puff

Features: 4-Way Stretch Shell for comfort and durability Wind & Water-Resistant (DWR) finish 250 AERIS™ Insulation – warm, light, and non-bulky Zippered Pockets – chest + hand pockets Temperature Range: -10˚F to 65˚F Built for warmth, comfort, and all-weather adventure. Fit Chart: Model: 6'2...
$179.99
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BasePro Full-Zip - Fortress Clothing
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BasePro Full-Zip - Black

BasePro Full-Zip — The Only Base Layer You Need Stay warm, dry, and comfortable in any condition. The BasePro Full-Zip is designed to replace 2–4 traditional base and mid layers—giving you serious warmth without bulk. Why It Works AERIS™ 250 Insulation – Keeps you...
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  • Black
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Wind-Breaker - Fortress Clothing
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Wind Breaker

Designed for active performance, this lightweight, packable jacket pairs perfectly with BasePro tops or any other gear, adapting to weather and activity. Key Benefits: Breathable & 4-Way Stretch – Moves with you for all-day comfort. Wind & Water Resistant – Protects against the elements....
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  • Ultra-Light Vest - Fortress Clothing
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    Ultra-Light Vest

    Designed for effortless movement and all-day warmth, this ultra-light vest keeps your core incredibly warm while making your hand pockets feel like built-in hand warmers. Perfect for everyday wear, it delivers reliable comfort for outdoor activities, work, or casual use without feeling bulky or...
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  • Terra Hoodie - Fortress Clothing
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    Terra Hoodie

    Terra Hoodie — Warm Where You Need It Most Built for work, adventure, and everyday wear, the Terra Hoodie delivers targeted warmth without bulk or restriction. Key Features Insulated Core – Patented AERIS™ keeps your torso warm Lightweight Sleeves & Hood – Breathable, flexible...
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  • Work Coat - Fortress Clothing
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    Work Coat

    Designed for exceptional durability and warmth, this coat is built to withstand severe cold working conditions. Aeris 250 Insulation: Delivers superior heat retention for reliable warmth. Wind-Resistant Fabric: Shields you from harsh weather elements, keeping you protected in tough conditions. Wide Temperature Range: Rated...
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  • Hybrid Hoodie - Fortress Clothing
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    Hybrid Hoodie - Coal

    Hybrid Hoodie — The One Jacket You’ll Reach For Every Time Your go-to outer layer for everyday cold to extreme conditions. The Hybrid Hoodie uses patented USA-made AERIS™ insulation to keep you warm even when wet — without the bulk. Why you’ll want it:...
    $179.99
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    • Coal
    • Forest Green
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  • Polar Puff - Fortress Clothing
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    Polar Puff

    Features: 4-Way Stretch Shell for comfort and durability Wind & Water-Resistant (DWR) finish 250 AERIS™ Insulation – warm, light, and non-bulky Zippered Pockets – chest + hand pockets Temperature Range: -10˚F to 65˚F Built for warmth, comfort, and all-weather adventure. Fit Chart: Model: 6'2...
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  • Storm - Fortress Clothing
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    Storm - Gray

    Materials: 500 AERIS INSULATION  1/2" for superior warmth 250  1/4" insulation on arms for added comfort 100% Polyester with DWR (Durable Water Repellent) Finish for water resistance Windproof | Water Resistant Fabric to keep you protected in harsh conditions Temperature Rating: -20˚F to 60˚F...
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    $229.99
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    • Gray
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  • BasePro Crew - Fortress Clothing
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    BasePro Crew 2.0

    BasePro Crew — The Only Base Layer You Need Stay warm, dry, and comfortable all day. The BasePro Crew replaces 2–4 bulky base and mid layers, giving you serious warmth in a simple, lightweight design. Why It Works AERIS™ 250 Insulation – Warm even...
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  • BasePro 1/4 - Fortress Clothing
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    BasePro 1/4

    The BasePro 1/4 Zip brings precision temperature control to your cold-weather layering system. Engineered with AERIS™ 250 insulated, 4-way stretch fabric, this piece regulates core warmth while allowing full freedom of movement. The 1/4 zip adds easy venting for high-output activities or changing conditions....
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  • BasePro Full-Zip - Fortress Clothing
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    BasePro Full-Zip - Black

    BasePro Full-Zip — The Only Base Layer You Need Stay warm, dry, and comfortable in any condition. The BasePro Full-Zip is designed to replace 2–4 traditional base and mid layers—giving you serious warmth without bulk. Why It Works AERIS™ 250 Insulation – Keeps you...
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    • Black
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  • BasePro Pant 2.0 - Fortress Clothing
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    BasePro Pant 2.0 - Black

    Made with AERIS™ 250 insulation, these base layer pants replace 2–4 traditional layers while maintaining warmth even in wet conditions. Proven through over 12 years of testing, they perform reliably across a wide temperature range from -5°F to 65°F. Key Features Maintains warmth when...
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    • Black
    • Gray
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  • Summit
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    Summit Snow Pant - Black

    The Fortress Summit uses Patented AERIS™ 250 insulation with 1/4" loft to keep you warm from -5˚ to 60˚F—even when wet. Light & Warm – Exceptional warmth-to-weight ratio for insulation. Weather-Ready – Stays warm even when wet, keeping you comfortable in any condition. Functional...
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    • Black
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  • Hand Muff - Fortress Clothing
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    Handwarmer Muff - Black

    Fortress Clothing™ Hand Muff – Ultimate Cold Protection Description: AERIS™ 500 Insulation – Rating to -30˚F to 60˚F SIZING: Based on Waist Large: 38" to 44" Standard: 26" to 38"  Engineered for extreme cold, the Fortress Clothing™ Hand Muff delivers unmatched warmth with USA PATENTED...
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    • Black
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  • GlovePro Leather (Work) - Fortress Clothing
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    GlovePro Leather

      The GlovePro Leather Edition 250 Aeris features Real Leather and Patented USA MADE Aeris® insulation, delivering warmth and durability Designed for superior protection, flexibility, and comfort in any condition
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  • SockPro 2.0 - Fortress Clothing
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    SockPro 2.0

    The World's First Insulated Knit Sock, featuring patented Aeris 250 ½" insulation. Updated Features: ✅ Knit Ankle Cuff – Easy on & off convenience✅ Brushed Liner – Enhanced comfort around the foot✅ Improved Design – Maximum fit & support✅ AERIS 250 Insulation – Keeps...
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  • FacePro - Fortress Clothing
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    Face-Mask

    Face-Mask Introducing our INSULATED Head-Sock, designed with advanced insulation around the face and ears, making it ideal for use with helmets and in cold conditions. This innovative headwear offers exceptional warmth and comfort, ensuring your face and ears stay protected from the elements. Perfect...
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  • Face Mask (balaclava) - Fortress Clothing
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    Face Mask (Balaclava)

    Fortress Carbon Extreme Warmth Patented AERIS™ 500 Insulation (½” / 13mm loft): Keeps you warm even when wet. Construction: shell for advanced fire resistance. Temperature Range: -35°F to 50°F (when paired with Fortress Classic Pant & Jacket). Adjustable Fit: Chin strap can be worn under...
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  • Face Mask (FR) "Fire Retardant" - Fortress Clothing
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    Face Mask (FR) "Fire Retardant"

    Fortress CarbonX® Fire-Resistant Balaclava Extreme Warmth + Flame Protection Patented AERIS™ 500 Insulation (½” / 13mm loft): Keeps you warm even when wet. Dual CarbonX Construction: 7oz knit CarbonX® liner + 12oz woven CarbonX® shell for advanced fire resistance. Temperature Range: -35°F to 50°F...
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  • Stuff Sack - Fortress Clothing

    Stuff Sack - Black

    Durable 50D nylon rip-stop compression bag Sack to store all of your Fortress gear in one spot, perfect for traveling or unexpected emergencies. It has 4 nylon webbing straps that can be cinched down to make the bag small and extremely mobile.   Weight 4...
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    • Black
  • Hat - Fortress Clothing

    Hat

    This outdoor hat is designed to provide optimal protection during various activities. Its construction ensures durability and comfort, allowing for extended wear in diverse weather conditions. The hat is suitable for hiking, camping, and other outdoor pursuits, enhancing your experience by shielding you from...
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    $34.99
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Let customers speak for us

from 588 reviews
Went from skeptic to true believer after a trip to Iceland

Saw the base layer and coat at an Outdoor Show in Denver just before leaving on a trip to Iceland in January. Could not pack much and sales guy convinced me I could leave my base layers at home and my bulky parka and be warm and dry the whole trip. Shipped to my house in two days and off I went. I figured I would buy some base layers if it didn't work out. Turns out the sales guy was totally solid!! I was so warm and dry out hiking on the glaciers, ice caving, and even whale watching on the boats during a super windy rainy trip when everyone else was shivering inside. Its not bulky at all and packs so light! Even when it was snowing and raining I truly did not notice being cold. I'm ALWAYS cold per my husband and even he remarked I did not complain once about being cold the whole trip. Its the best investment I have ever made!!

Dianna Hamilton
Fortress Clothing
02/12/2025

Really soft like u walking on a cloud and nothing is warmer than these, might need alittle extra space for the shoe or boot but it contours to the sneaker or what ever I brought 3 pairs

rafael
SockPro 1.0
01/01/2025

Not only does it look great it's super warm and wind resistant, I took it on a boat cruise in nyc 20 degrees and on a boat and felt no cold what so ever love it

rafael
Glacier
12/30/2024

Always skeptical about those little calculators that tell you what size to order based on weight, height and age, but I followed their recommendation and it was perfect. Jacket is amazing. Very warm and wind proof. Nebraska is 19 today and I was warm without being hot. Love it so far. Great price too!

Michael
Shadow 2.0
12/01/2024
Great gear!

Best base layer I’ve ever bought.. Very happy with it. Used it recently to go snowboarding and it felt great; light and comfortable. I used it under a light running windbreaker and it worked great. I was warm and dry the entire time. Temp at the mountain was between 15F and 40F, and at times, under the sun, I even opened the wind breaker and base layer zipper to cool down.. can’t wait to teste it in colder weather.
I am 6”1’, 205lb, and the size L fit perfectly, not too tight and not too loose. It’s not too thick or puffy, so no trouble wearing sporty fit wind breaking layers on top.

Luis Jardim
BasePro 1/4 Zip
09/21/2024
Great Option

I have a 1/4 zip, which is a lot easier to put on than the regular base pro. This is much easier to put off and on. When I’m going to wear it for hours, it doesn’t matter, but for shorter periods of use it’s a great feature. It might not be as warm, but I’ll find out. And it fits great!
-FYI I’ve used my 1/4 zip on an open SARS boat in - temps and it is awesome! It is pretty beat up, but still keeps me warm. I’ll use it until it falls apart! I have a 2 vests too. I’m a fan of this gear for sure.

Dave McKay
BasePro Full-Zip
09/09/2024
Warmest base layer ever.

I have the old insulated Cabelas bibs and parka, purchased years before Fortress clothing was available. It's well insulated, but Fortress is a new standard in insulation. I have the base layer, gloves, balaclava and insert for pack boots. I can wear lighter outer ware, so total weight is reduced. I wish I could justify 2 sets of cold weather gear. I am sure the Fortress gear would be lighter, and warmer.

Lou Skimming
BasePro Full-Zip
04/22/2024
Love it

Love this coat! Wore it skiing with only a sweat wicking shirt underneath. Kept me toasty on the chairlifts and vented well on the slopes. Thinking about trying out the hybrid hoodie next for when it isn’t quite so cold out.

Josh Evans
Shadow 2.0
03/27/2024
Base Pro Pant 2.0

Wanted an extra warm and dry layer for a winter trip to Alaska. It did the trick and I was extremely comfortable and not overly sweaty.

Joseph Paglinawan
BasePro Pant 2.0
02/27/2024
BasePro Full-zip added to my Fortress Clothing wardrobe

Yet another fantastic underlayer. I have heavily used the original pull-over BasePro top for several seasons. The full-zip version is perfect for additional layering options...fantastic for the widely varying conditions this year!

D ALAN & DEBBIE K ET AL DECKER
BasePro Full-Zip
02/20/2024
Warm extra layer for skiing for cold people

I purchased this because I get cold easily and I wanted a good layer for under my jacket for skiing. It definitely was warmer than my 2 wool shirts

Sue Dziuban
BasePro 1/4 Zip
02/10/2024
Awesome gloves

I picked up a pair of these last month at the Denver International Sportsmens Expo. I have a few other Fortress items and I am extremely happy! I highly recommend them! Gloves are very warm! Fortress is exactly what you need!

Scott Whatley
GlovePro
02/06/2024
I wish…..

I wish I had this equipment when I was in the service. Although the equipment now issued to our troops have come a long way, Fortress far surpasses anything I had been issued in the 22 years of service in the U.S. Army Special Forces.
Phenomenal gear.

Joseph Dwyer
Face-Mask
02/02/2024
BasePro Pants 2.0 Are Great!

I love the new BasePro Pants 2.0. They are made from a much softer, quieter material, but still just as warm as the original! Great improvement on a Great product!

Robert Foster
BasePro Pant 2.0
01/30/2024
Excellent Base Layer

Unlike the base layer with a half zipper this base layer is easy to put on and works well.

Edward D.
BasePro Full-Zip
01/29/2024

Discover the Fortress Layer System Advantage

Designed to work together for warmth from -30°F to 50°F or by themselves -5˚F to 65˚F

1st Layer

BasePro Full-Zip - Fortress Clothing
BasePro Full-Zip
$129.99
BasePro Crew - Fortress Clothing
BasePro Crew 2.0
$119.99
BasePro Pant 2.0 - Fortress Clothing
BasePro Pant 2.0
$119.99
BasePro 1/4 - Fortress Clothing
BasePro 1/4
$90.00
Basepro Crew 1.0 - Fortress Clothing
Basepro Crew 1.0
$69.99
BasePro 1/4" (kids) - Fortress Clothing
BasePro 1/4 1.0 Final Sale
$24.99

Main Layer or 2nd Layer

Cloud - Fortress Clothing
Cloud
$149.99
Hybrid Hoodie - Fortress Clothing
Hybrid Hoodie
$179.99
Glacier - Fortress Clothing
Glacier
$79.99
Arctic Women's - Fortress Clothing
Arctic Women's
$149.99
Polar Puff - Fortress Clothing
Polar Puff
$179.99
Shadow 2.0 - Fortress Clothing
Shadow 2.0
$189.99
Shadow Jacket - Fortress Clothing
Shadow 1.0
$168.00
Terra Hoodie - Fortress Clothing
Terra Hoodie
$129.99
Ultra-Light Vest - Fortress Clothing
Ultra-Light Vest
$109.99
Wind-Breaker - Fortress Clothing
Wind Breaker
$89.00
Wilderness - Fortress Clothing
Wilderness
$119.99
Storm - Fortress Clothing
Storm
$99.99
Work Coat - Fortress Clothing
Work Coat
$199.99
Tundra Coat 2.0 - Fortress Clothing
Tundra
$249.99
Extreme jacket - Fortress Clothing
Extreme jacket
$99.99
USA Made Insulation

Seen on Shark Tank

Built in the USA with patented American-made insulation for unmatched warmth, comfort, and performance.

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Popular Products

Wind-Breaker - Fortress Clothing

Wind Breaker

Designed for active performance, this lightweight, packable jacket pairs perfectly with BasePro tops or any other gear, adapting to weather and activity. Key Benefits: Breathable & 4-Way Stretch – Moves with you for all-day comfort. Wind & Water Resistant – Protects against the elements....
$89.00
$119.99
$89.00
Save $30.99
Unit price
/ per 
Terra Hoodie - Fortress Clothing

Terra Hoodie

Terra Hoodie — Warm Where You Need It Most Built for work, adventure, and everyday wear, the Terra Hoodie delivers targeted warmth without bulk or restriction. Key Features Insulated Core – Patented AERIS™ keeps your torso warm Lightweight Sleeves & Hood – Breathable, flexible...
$129.99
$129.99
Unit price
/ per 
Cloud - Fortress Clothing

Cloud - Cobalt

The Cloud Jacket is your perfect balance of lightweight comfort and serious warmth. Built with ultra-soft materials and Patented insulation, it wraps you in cloud-like coziness without the bulk. Ideal for everyday wear, chilly adventures, or lounging in warmth. Temp Rating: 15˚F to 70˚F –...
$149.99
$149.99
Unit price
/ per 
  • Cobalt
BasePro Full-Zip - Fortress Clothing

BasePro Full-Zip - Black

BasePro Full-Zip — The Only Base Layer You Need Stay warm, dry, and comfortable in any condition. The BasePro Full-Zip is designed to replace 2–4 traditional base and mid layers—giving you serious warmth without bulk. Why It Works AERIS™ 250 Insulation – Keeps you...
$129.99
$129.99
Unit price
/ per 
  • Black
Shadow 2.0 - Fortress Clothing

Shadow 2.0

Stay warm and protected on every winter adventure with the Shadow 2.0. Built with 100% polyester lining and 250 AERIS® insulation, this jacket provides superior warmth and flexibility. The 4-way stretch fabric ensures maximum freedom of movement, while the wind & water-resistant DWR material...
$189.99
$189.99
Unit price
/ per 
Arctic Women's - Fortress Clothing

Arctic Women's

Women’s Arctic Coat keeps you cozy, comfortable, and effortlessly stylish no matter how cold it gets. Designed for warmth without the bulk, it’s perfect for everyday wear and outdoor adventures. Shorter Silhouette: A sleek, modern fit that flatters and moves with you. USA Made...
$149.99
$149.99
Unit price
/ per 
Hybrid Hoodie - Fortress Clothing

Hybrid Hoodie - Coal

Hybrid Hoodie — The One Jacket You’ll Reach For Every Time Your go-to outer layer for everyday cold to extreme conditions. The Hybrid Hoodie uses patented USA-made AERIS™ insulation to keep you warm even when wet — without the bulk. Why you’ll want it:...
$179.99
$179.99
Unit price
/ per 
  • Coal
  • Forest Green
Polar Puff - Fortress Clothing

Polar Puff

Features: 4-Way Stretch Shell for comfort and durability Wind & Water-Resistant (DWR) finish 250 AERIS™ Insulation – warm, light, and non-bulky Zippered Pockets – chest + hand pockets Temperature Range: -10˚F to 65˚F Built for warmth, comfort, and all-weather adventure. Fit Chart: Model: 6'2...
$179.99
$179.99
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Polar Puff - Fortress Clothing

Polar Puff

Features: 4-Way Stretch Shell for comfort and durability Wind & Water-Resistant (DWR) finish 250 AERIS™ Insulation – warm, light, and non-bulky Zippered Pockets – chest + hand pockets Temperature Range: -10˚F to 65˚F Built for warmth, comfort, and all-weather adventure. Fit Chart: Model: 6'2...
$179.99
$179.99
Unit price
/ per 
Review picture
Luis Jardim
Great gear!

Best base layer I’ve ever bought.. Very happy with it. Used it recently to go snowboarding and it felt great; light and comfortable. I used it under a light running windbreaker and it worked great. I was warm and dry the entire time. Temp at the mountain was between 15F and 40F, and at times, under the sun, I even opened the wind breaker and base layer zipper to cool down.. can’t wait to teste it in colder weather.
I am 6”1’, 205lb, and the size L fit perfectly, not too tight and not too loose. It’s not too thick or puffy, so no trouble wearing sporty fit wind breaking layers on top.

BasePro 1/4 Zip
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Christopher

Can’t wait to try it on

Face-Mask
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Anthony

Great

Try Risk Free with Free Returns for Store Credit or Exchanges for $1.98
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Anthony

Awesome company awesome base layer keeps me warm and dry all day

BasePro 1/4
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Anthony

Awesome company awesome jacket warm and snug

Hybrid Hoodie
★ Reviews

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L
BasePro 1/4 Zip
Luis Jardim
Great gear!

Best base layer I’ve ever bought.. Very happy with it. Used it recently to go snowboarding and it felt great; light and comfortable. I used it under a light running windbreaker and it worked great. I was warm and dry the entire time. Temp at the mountain was between 15F and 40F, and at times, under the sun, I even opened the wind breaker and base layer zipper to cool down.. can’t wait to teste it in colder weather.
I am 6”1’, 205lb, and the size L fit perfectly, not too tight and not too loose. It’s not too thick or puffy, so no trouble wearing sporty fit wind breaking layers on top.

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r
BasePro Pant 2.0
rafael

Super warm ,super comfortable,i ordered 2 for me and my son and we both love them I'm 5 10 215 lbs I got a xl fit great

T
Shadow 2.0
Tanae Childs
Stay warm

We bought this coat for our son who is serving a mission in Canada. It isn’t bulky, keeps out the wind chill and keeps you warm. I’m not sure what more you could ask from a coat. Also the price point is significantly less then all of the other coats we looked at that can handle a Canadian winter.

M
Glacier
M.C.S.

The zipper is very fine delicate pulls apart all the time very cheap for the price would not buy again or recommend

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