Base Layer & Thermal Underwear

Coldpruf Basic Midweight Underwear Crew Shirt - Men's

$15.99

The Coldpruf Men's Basic Midweight Crew Shirt is a base layer underwear garment, designed to trap air between its two layers, providing a natural barrier of warmth. The two-layer engineering delive...

Coldpruf Basic Midweight Underwear Pants - Men's

$15.99

The Coldpruf Men's Basic Midweight Underwear Pants are a base layer underwear garment, designed to trap air between its two layers, providing a natural barrier of warmth. The two-layer engineering ...

23% Off

Coldpruf Enthusiast Polypropylene Lightweight Pants - Men's

$22.99

~~$30.00~~

The Coldpruf Men's Enthusiast Polypropylene Lightweight Pants are a single-layer garment made out of 100% polypropylene, engineered to give a close comfortable fit without being restrictive. The En...

23% Off

Coldpruf Enthusiast Polypropylene Lightweight Crew Shirt - Men's

$22.99

~~$30.00~~

The Coldpruf Men's Enthusiast Polypropylene Lightweight Crew Shirt is a single layer garment made out of 100% polypropylene engineered to give a close comfortable fit without being restrictive. The...

33% Off

$29.99

~~$45.00~~

The Thermolator 2.0 Crew Neck Top is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features an ultra-soft, midweight fabric utilizing our fe...

33% Off

Terramar 2.0 Thermolator II CS Midweight Pants - Men's

$29.99

~~$45.00~~

A midweight, extremely comfortable, brushed polyester spandex pant with four-way stretch for unrestricted movement, and Climasense thermoregulation comfort. The Terramar Men's 2.0 Thermolator II CS...

33% Off

Terramar ThermaSilk CS Silk Lightweight Pants - Men's

$40.20

~~$60.00~~

Over forty years ago Terramar was the first company to introduce pure silk performance base layer products. Today, Thermasilk is still the standard for people wanting a natural and breathable gar...

34% Off

Terramar EC2 Military Fleece Expedition Weight Crew Shirt - Men's

$22.99

~~$35.00~~

Originally produced to meet US Army specifications, our Military Fleece Crew has become a favorite of hunters, fishermen and other outdoors people for years. The heavy weight fleece on the inside t...

33% Off

Terramar ThermaSilk CS Silk Lightweight Long Sleeve Crew Shirt - Men's

$40.20

~~$60.00~~

Over forty years ago Terramar was the first company to introduce pure silk performance base layer products. Today, Thermasilk is still the standard for people wanting a natural and breathable gar...

34% Off

Terramar EC2 Military Fleece Expedition Weight Pants - Men's

$22.99

~~$35.00~~

The Terramar Men's Military Fleece Expedition Weight Pants, with ec2® Qwik-Dri Thermoregulation Comfort Technology, are an ideal base layer choice for those blustery cold days of winter when the t...

23% Off

Coldpruf Enthusiast Polypropylene Lightweight Tall Pants - Men's

$22.99

~~$30.00~~

The Coldpruf Men's Enthusiast Polypropylene Lightweight Tall Pants are a single-layer garment made out of 100% polypropylene, engineered to give a close comfortable fit without being restrictive. T...

25% Off

Coldpruf Platinum II Midweight Underwear Crew Shirt - Men's

Black long-sleeve shirt on a white background

$29.99

~~$40.00~~

Your TRUSTED base layer REBUILT for the MODERN ADVENTURE. Inside Layer: 100% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness Outside Layer: 70% polyester / 30% MERINO WOOL...

SmartWool Merino 250 Baselayer Crew - Men's

$115.00

Meet the better-than-ever Men's Merino 250 Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoul...

25% Off

Coldpruf Platinum II Midweight Underwear Pants - Men's

$29.99

~~$40.00~~

Your TRUSTED base layer REBUILT for the MODERN ADVENTURE. Inside Layer: 100% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness Outside Layer: 70% polyester / 30% MERINO WOOL...

20% Off

$39.99

~~$50.00~~

The Men's Terramar Thermolator Half Zip is a great base layer when the weather turns cold but you need to be out working or playing. Designed using Terramar's Climasense fabric (86% Recycled Polyes...

12% Off

$21.99

~~$25.00~~

The Terramar Men's Transport Pant are the light weight high energy base layer you want when you want to cut the shill and keep the sea down. These Transport pants are made with Terramars Transport ...

12% Off

Terramar Transport +1.0 Lightweight Long Sleeve Crew Shirt - Men's

$21.99

~~$25.00~~

The Terramar Men’s Transport® +1.0 Crew Shirt is the perfect shirt for cooler weather workouts or as the foundation of a multi-layering system. The Transport fabric is stretchy, lightweight, moist...

37% Off

Terramar Transport +1.0 Lightweight Pant - Women's

$21.99

~~$35.00~~

The Terramar Women’s Transport® +1.0 Pants excel as a breathable, lightweight layering piece with optimal moisture and temperature management so you feel comfortable wherever you may roam. A wide w...

Smartwool Men's Intraknit Thermal Merino Base Layer Crew

$130.00

This minimalist-style crew is anything but insignificant. Our Men's Intraknit™ Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather ac...

Coldpruf Journey Single Layer Fleece Pant - Men's

$21.99

~~$0.00~~

Single layer, lightweight fleece 100% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness Fabric weight: 5 oz. Rib Cuffs Comfort Waistband Front and Back Rise Regular Fit

Smartwool Kids' Classic Thermal Merino Base Layer Bottom

$65.00

Our Kids' Classic Thermal Merino Base Layer Bottom uses our super soft Mid 250 interlock knit—perfect for layering in cool conditions and great for wearing alone on a mild day. Now your kids can be...

Coldpruf Basic Midweight Underwear Crew Shirt - Women's

$15.99

The Coldpruf Women's Basic Midweight Crew Shirt is a base layer underwear garment, designed to trap air between its two layers, providing a natural barrier of warmth. The two-layer engineering deli...

Coldpruf Basic Midweight Underwear Pants - Women's

$15.99

The Coldpruf Women's Basic Midweight Underwear Pants are a base layer underwear garment, designed to trap air between its two layers, providing a natural barrier of warmth. The two-layer engineerin...

20% Off

Coldpruf Enthusiast Polypropylene Lightweight Crew Shirt - Women's

$19.99

~~$25.00~~

The Coldpruf Women's Enthusiast Polypropylene Lightweight Crew Shirt is a single-layer garment made out of 100% polypropylene, engineered to give a close comfortable fit without being restrictive. ...

20% Off

Coldpruf Enthusiast Polypropylene Lightweight Pants - Women's

$19.99

~~$25.00~~

The Coldpruf Women's Enthusiast Polypropylene Lightweight Pant are a single-layer garment made out of 100% polypropylene, engineered to give a close comfortable fit without being restrictive. The e...

Coldpruf Journey Single Layer Fleece Crew - Women's

$19.99

~~$0.00~~

Regular fit crew Single layer, lightweight fleece Rib cuffs Drop tail for added protection against cold Technology: 100% ColdPruf® technical fiber polyester with SILVADUR™ intelligent freshne...

25% Off

Coldpruf Platinum Mid Weight Crew Shirt - Women's

$29.99

~~$40.00~~

Coldpruf Women's Platinum Crew Thermal Shirt is specifically engineered to trap air between its layers of fabric to provide a natural warmth shield. Product Features:Long sleeve, Crew neck, Flat se...

25% Off

Coldpruf Platinum Mid Weight Pants - Women's

$29.99

~~$40.00~~

The Platinum two layer garment has been specifically engineered with our ColdPruf technology to trap air between the layers of fabric to provide a natural warmth shield. The Platinum offers the des...

33% Off

Person wearing black leggings on a white background

Terramar 2.0 Cloud Nine CS Midweight Pants - Women's

$29.99

~~$45.00~~

With unsurpassed comfort, the Terramar Women's 2.0 Cloud Nine Pants are the ultimate midweight base layer. With relaxed fitting spandex construction, coupled with soft, brushed polyester, these wil...

33% Off

Terramar 2.0 Cloud Nine CS Midweight Long Sleeve Scoopneck Shirt - Women's

$29.99

~~$45.00~~

With unsurpassed comfort, the Terramar Women's 2.0 Cloud Nine Scoop is the ultimate midweight base layer. With relaxed fitting spandex construction, coupled with soft, brushed polyester, this will ...

Patagonia Women's Capilene Midweight Bottoms

$89.00

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® P...

25% Off

$14.99

~~$20.00~~

Our Terramar Everyday Essentials Leggings are a great combination of comfort and warmth. Seamlessly made, these leggings are brushed on the inside and are a heavier weight making them perfect for ...

Base Layer

Shopping Cart

You might like these ...

Cotton Bandana

Hydro Flask 32 oz All Around Travel Tumbler

Bandana XL 35 x 35 Cotton