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...

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...

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...

25% Off

$29.99

~~$40.00~~

Terramar Kid's Free Ride 2-Piece Set is a midweight 2.0 base layer for your kids. Great all around base layer for average winter temperatures for your active kids. The Free Ride uses Terramar's Cli...

33% Off

Terramar Thermolator Turtle Neck - Men's

$29.99

~~$45.00~~

The Thermolator 2.0 Turtle 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...

25% Off

Coldpruf Platinum II Midweight Underwear Crew Shirt - 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...

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...

27% Off

Terramar Ecolator CS 3.0 Long Sleeve Fleece Crew Shirt - Men's

$39.99

~~$55.00~~

The Terramar Men's Ecolator CS 3.0 Long Sleeve Crew Shirt is made from heavyweight grid fleece and is perfect as a temperature regulation layer. Featuring Climasense fabric treatment for a better ...

21% Off

Terramar Thermawool CS 3.0 Long Sleeve Crew Shirt - Men's

$54.99

~~$70.00~~

Terramar's Thermawool CS 3.0 Long Sleeve Crew Shirt for Men represents their highest thermal rating and is the optimal choice for regulating temperature. This great looking crew shirt is constructe...

17% Off

Terramar Ecolator CS 3.0 Long Sleeve Fleece Half Zip - Men's

$49.99

~~$60.00~~

The Terramar Men's Ecolator CS 3.0 Long Sleeve Fleece 1/4 Zip is made from heavyweight grid fleece and is perfect as a temperature regulation layer. Featuring Climasense fabric treatment for a bet...

20% Off

Terramar Thermawool CS 3.0 Long Sleeve 1/2 Zip - Men's

$59.99

~~$75.00~~

The secret of our Thermawool is blending merino wool with just the right number of microfibers to make the ideal technical thermal fabric to breathe and manage moisture. Thermawool has the benefi...

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

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...

79% Off

Terramar Ultra Merino Crew Shirt 2.0 - Men's

from $14.99

~~$70.00~~

This mid-weight, duo layer crew, consists of a fully synthetic inside and Merino blend face. Our bi-layer construction, creates an air pocket in-between both layers for additional insulation and th...

37% Off

Terramar Transport 1.0 Lightweight Long Sleeve Crew Shirt - Women's

$21.99

~~$35.00~~

The Terramar Women’s Transport® +1.0 Crew Shirt is a versatile base layer with excellent performance properties. The Transport fabric is stretchy, lightweight, moisture-wicking, and breathable - it...

57% Off

Terramar Beast 4.0 1/2 Zip Shirt - Men's

$29.99

~~$70.00~~

If you are looking for ultra-warmth, the Beast is for you! This half-zip top has a smooth face on the outside of the top for easy layering and brushed ultra-high pile sherpa fleece on the inside to...

23% Off

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

$49.99

~~$65.00~~

The Miracle of SilkAfter 4000 years, nature and science have joined forces to produce silk long underwear which can help thermo-regulate the body's temperature and dramatically speed up the dispers...

60% Off

Terramar Ultra Merino 1/2 Zip Shirt 2.0 - Men's

$29.99

~~$75.00~~

This mid-weight, duo layer crew, consists of a fully synthetic inside and Merino blend face. Our bi-layer construction, creates an air pocket in-between both layers for additional insulation and th...

Patagonia Men's Capilene Midweight Zip Neck

$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

SmartWool Merino 250 Baselayer 1/4 Zip - Men's

$90.00

~~$120.00~~

We've updated the fit of our Men's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and best base layers for cold weath...

$129.00

Now available in our Phase.SC™ concealment patterns, Blowdown and Harvest, the 1/4 Zip Mock Neck is the feather-light companion for folks on the move. Revel in comfort and style with this adaptable...

27% Off

Coldpruf Platinum II Midweight Underwear Crew Shirt - Men's Tall

$32.99

~~$45.00~~

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...

23% Off

Coldpruf Enthusiast Polypropylene Lightweight Tall Crew Shirt - Men's

$22.99

~~$30.00~~

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

25% Off

Terramar Thermafleece 2-Piece Set - Toddler's

$29.99

~~$40.00~~

Your Toddler is always on the go. No reason to stop when the weather turns cold. Dress your toddler in the Terramar Thermafleece 2-Piece Set. A 4.0 the warmest base layer available through Terramar...

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 Extreme Performance Expedition Weight Underwear Crew Shirt - Women's

$50.00

The Coldpruf Women's Extreme Performance Expedition Weight Crew Shirt has been specifically engineered with Coldpruf Technology (CTF) for warmth, dryness, and odor control, with spandex for superio...

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 Quest Performance Women's Crew Shirt

$29.99

~~$40.00~~

The Holy Grail of base layers. Single-layer, jersey knit fabric Fabric Weight: 6.5 oz Fiber Content: 85% ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness / 15% Spandex...

70% Off

$14.99

~~$50.00~~

-Ribbed polyester/spandex trim on neck for extra comfort -Comfortable extended ribbed cuff with thumbhole -Crossover rib hem allows for stylish untucked look if desired

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 ...

Base Layer

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