Fortress Clothing's Patented USA Insulation—Feel the Difference in Eve

Smart Insulation Technology

Warmth You Can SEE

Stay warm without the bulk. Powered by patented USA-made AERIS™ Adaptive Warming Insulation, this gear delivers lightweight, breathable warmth that adjusts to your activity—built for peak performance in extreme cold.

Utah-based Fortress Clothing™ specializes in cold-weather gear that keeps you warm even when wet. Featuring patented USA-made AERIS™ Adaptive Warming Insulation, it traps body heat down to -30°F. Designed to replace bulky layers, Fortress gear offers lightweight comfort and mobility for outdoor workers, adventurers, and preppers alike.

Shop Women

Shop Men

New Spring Arrivals

Shop All

Cloud

$149.99; $149.99
Unit price: per

Terra Hoodie

$139.99; $139.99
Unit price: per

Polar Puff

$144.99; ~~$169.99~~; $144.99
Unit price: per

Wind Breaker

$99.00; ~~$119.00~~; $99.00
Unit price: per

BasePro Full-Zip

$129.00; $129.00
Unit price: per

SockPro 2.0

$34.99; $34.99
Unit price: per

GlovePro Leather

$69.00; $69.00
Unit price: per

Hand Muff

$39.99; $39.99
Unit price: per

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

Spring Collection

Lightweight layers for cool, changing temps.

Shop Now

Fall Collection

Durable warmth for crisp fall weather.

Discover Now

Winter Collection

Built for Change – Insulation that adapts to your movement, effort, and environment.

Explore Now

Your Adventure, Your Way

Best Selling

Shop All

Wind Breaker

$99.00; ~~$119.00~~; $99.00
Unit price: per

Terra Hoodie

$139.99; $139.99
Unit price: per

Cloud

$149.99; $149.99
Unit price: per

Ultra-Light Vest

$99.00; $99.00
Unit price: per

BasePro 1/4

$119.00; ~~$0.00~~; $119.00
Unit price: per

BasePro Full-Zip

$129.00; $129.00
Unit price: per

BasePro Pant

$119.00; $119.00
Unit price: per

Polar Puff

$144.99; ~~$169.99~~; $144.99
Unit price: per

Conquer the cold with Fortress Clothing™—engineered with USA-patented insulation for unmatched warmth, comfort, and protection in any condition.

Featured Stories

View all

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

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

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

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

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

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

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

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

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,...

Stay protected in any weather with Fortress Clothing®—USA-patented insulation that keeps you warm, even when wet.

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.