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.
The Fanatic beanie offers whitetail hunters the ultimate in warmth and silence for frigid tree stand hunts with GORE-TEX INFINIUM™ WINDSTOPPER® Technology, PrimaLoft Insulation and acoustic hearing ports to hear deer approaching earlier.
This is the perfect midlayer for everything you do outside. Light, soft, stretchy, super-warm—you can wear it by itself when it's cool, or under a jacket in the dead of winter.
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.
Cut from the same fabric as the Jetstream Jacket, the Jetstream WINDSTOPPER® Beanie is ideal for charging up steep faces in bitter cold or sitting motionless on a windy ridge.
Designed with versatility, function, and value in mind, Fieldsheer's Proton women's Heated Baselayer Shirt delivers uncompromising performance combined with our Mobile Warming Technology.
Keeping your muscles warm in cold weather is key—to your performance AND recovery. ColdGear® Infrared Down provides warmth, protection, and breathability, so you maintain focus, clarity, and forward momentum. Cold can't stop you.
Armour Fleece® is light, incredibly warm, and has just the right amount of stretch. UA Storm is water-repellent and nearly weightless. Together, you never need to train indoors again.