UA Base 4.0 is built for extreme cold weather and lower activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.
UA Base 2.0 is built for cold weather and high activity levels. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.
UA Base 3.0 is built for very cold weather and moderate activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.
Built with midweight comfort stretch fleece insulation to tune your microclimate, the CORE Midweight Crew LS turns up the heat to keep you moving in cool temperatures while actively wicking moisture away from your skin to keep you dry and comfortable.
Nothing causes discomfort and distraction like a cold, relentless wind. Our windproof Jetstream Vest, utilizing GORE® WINDSTOPPER® product technology, is one of our all-time favorite products year after year.
The Rebar Foundation 1/4 Zip Shirt has a tough exterior with nothing but the softest brushed jersey against the skin. Inside and out, it's perfect for layering under a hoodie or a jacket.