ADAPTIVE USA MADE INSULATION

Trusted Gear for All Conditions

Stay warm without the bulk. Powered by patented USA AERIS™ insulation, this gear offers lightweight, breathable warmth designed for high performance in cold weather.

Utah-based company that specializes in cold-weather apparel designed to keep users warm even when wet. Its patented USA made AERIS insulation technology traps body heat and maintains core warmth in temperatures as low as -30°F, making it popular among outdoor workers, adventurers, and preppers. Unlike traditional layering systems, Fortress gear can often be worn as a single layer, reducing bulk while maintaining comfort and mobility.

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New Spring Arrivals

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Cloud
$149.99
$149.99
Terra Hoodie
$139.99
$139.99
Polar Puff
$144.99
$169.99
$144.99
Save $25.00
Wind Breaker
$99.00
$119.00
$99.00
Save $20.00
BasePro Full-Zip
$129.00
$129.00
BasePro Pant 2.0
$119.00
$119.00
BasePro Pant 2.0 Gray
$119.00
$119.00
SockPro 2.0
$34.99
$34.99

Seasonal Collections

Discover handpicked cold-weather essentials crafted to thrive in every season. Whether it’s the cozy protection of winter-ready base layers, breathable comfort for chilly spring mornings, or rugged durability for cool summer nights and crisp autumn days—Fortress Clothing’s limited-time collections are built to keep you warm, dry, and prepared year-round

Winter Collection

Warm, weatherproof gear built for extreme cold.
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Spring Collection

Lightweight layers for cool, changing temps.
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Fall Collection

Durable warmth for crisp fall weather.
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Your Adventure, Your Way

Best Selling

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Arctic Women's
$175.00
$175.00
Shadow 1.0
$149.00
$149.00
Wind Breaker
$99.00
$119.00
$99.00
Save $20.00
Terra Hoodie
$139.99
$139.99
Cloud
$149.99
$149.99
Hybrid Hoodie
$159.00
$0.00
$159.00
Save $-159.00
BasePro Crew
$119.00
$0.00
$119.00
Save $-119.00
BasePro Full-Zip
$129.00
$129.00

Works Even When Wet

SHARK TANK!

Military Approved

Featured Stories

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The Best Do-It-All Casual Jacket: The New Cloud Jacket

The Best Do-It-All Casual Jacket: The New Cloud Jacket

Finding the perfect jacket for unpredictable weather is tough—until now. Introducing the Cloud Jacket by Fortress Clothing—a lightweight yet incredibly warm do-it-all...
Stay Warm at Home: The Best Clothing for Cold Indoor Temperatures

Stay Warm at Home: The Best Clothing for Cold Indoor Temperatures

As temperatures drop, many people—especially older adults—struggle to stay warm inside their homes. Whether you live in a drafty house, keep the...
The Best Jacket/Top for Gaming in Cold Basements & Chilly Rooms

The Best Jacket/Top for Gaming in Cold Basements & Chilly Rooms

If you’re a gamer, you know the struggle—your hands are freezing, your body is stiff from the cold, and the only thing...
The Best Jackets for Dog Walking: Stay Warm No Matter the Weather

The Best Jackets for Dog Walking: Stay Warm No Matter the Weather

When you step outside on a chilly morning to walk your dog, the last thing you want is to be shivering in...
Best Affordable Cold/Winter/Gear Clothing That Works

Best Affordable Cold/Winter/Gear Clothing That Works

When it comes to winter clothing, staying warm without breaking the bank is a top priority. Many budget-friendly options fail to deliver...
The Future of Baselayers: Fortress Clothing’s Ultimate Cold-Weather Solution

The Future of Baselayers: Fortress Clothing’s Ultimate Cold-Weather Solution

Traditional layering requires multiple bulky pieces to stay warm, but Fortress Clothing™ has revolutionized the system with our patented BasePro technology. Designed...
Why Fortress Clothing is the #1 Winter Gear Brand Affordable/fuctional/USA Made Insulation

Why Fortress Clothing is the #1 Winter Gear Brand Affordable/fuctional/USA Made Insulation

Revolutionizing Cold Weather Protection with Unbeatable USA-Made Insulation (New technology) When it comes to extreme cold, traditional winter gear just doesn’t cut...
Top 10 Cold Weather Gear Essentials for Work & Outdoor Adventure

Top 10 Cold Weather Gear Essentials for Work & Outdoor Adventure

When temperatures drop, having the right gear is critical—whether you're working outdoors in extreme conditions or exploring the backcountry. Traditional winter clothing...
Top 10 Cold Weather Clothing & Gear Essentials – Fortress Clothing

Top 10 Cold Weather Clothing & Gear Essentials – Fortress Clothing

When temperatures drop, staying warm isn't just about piling on layers—it's about choosing the right gear. With advancements like USA-patented AERIS™ insulation,...
Trusted gear for you to Thrive Outside

Learn More

As seen on Shark Tank, Fortress Clothing® keeps you warm even when wet, thanks to our USA-patented Aeris® insulation. This advanced technology locks in body heat while actively removing moisture, ensuring comfort in a wide range of temperatures—indoors or outdoors.

Our product line includes base layers, vests, jackets, hoodies, parkas, bibs, gloves, and booties for both men and women, all backed by a money-back guarantee.
Free shipping over $50 USA

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