Base Layer - Tops

The Cloud Nine Performance Scoop is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features a...

The Below Zero Crew is the perfect piece to keep you warm. The extra durable four way stretch provides support and ease of movement in all directio...

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 ...

Originally produced to meet US Army specifications, our Military Fleece Crew has become a favorite of hunters, fishermen and other outdoors people ...

Originally produced to meet US Army specifications, our Military Fleece Crew has become a favorite of hunters, fishermen and other outdoors people ...

This turtleneck is a game-changer and wardrobe-maker. Why? Because it's made with 100% ZQ-certified Merino wool! That means it's warm, cozy, breath...

Our Women's Merino 250 Drape Neck Hoodie is a fan favorite, with its relaxed fit, flatlock seams to help eliminate chaffing, and 100% ultra-soft Me...

You'll never want to take off the Women's Classic Thermal Merino Base Layer Crew. Whether you have a weekend full of relaxation ahead of you or you...

Meet the new and improved Women's Merino 250 Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new color options and an enhanc...

We've updated the fit of our Women's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest...

This minimalist-style crew is anything but insignificant. It is a lightweight, super-moveable top, perfect for all of your sweatiest cold-weather a...

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 impro...

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 b...

Protective, quick-wicking, and lightweight, this comfortable short sleeve tee is perfect for mountain running and fast hiking.

The Force hoody is made with fast-drying Motiv fabric with UPF protection. Lightweight and breathable, it's ideal for cool mornings or covering up ...

The first layer you'll reach for every morning of winter. This thin fleece pull-on is built for mountain ascents in cold conditions, wicking sweat ...

Protective, quick-wicking, and lightweight, this comfortable short sleeve tee is perfect for mountain running and fast hiking.

Protective, quick-wicking, and lightweight, this comfortable long-sleeve, half-zip tee is perfect for mountain running and fast hiking.

A warmer, midweight version of our best-selling Oasis, the 260 Tech Long Sleeve Half Zip is a go-to piece for winter layering, made with 100% merin...

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top.

Our versatile baselayer design in a midweight, zip-neck design, the updated 260 Tech Long Sleeve Half Zip is a go-to foundation for cold-weather la...

A warmer, midweight version of our best-selling Oasis, the 260 Tech Long Sleeve Half Zip is a go-to piece for winter layering, made with 100% merin...

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top.