Under Armour Base Layers Explained


How To Choose A Base Layer

The key to staying warm during outdoor winter activities is layering! Under Armour has created an excellent line of base layers, also called thermal underwear, with a variety of options to keep you warm during cold weather activities. Base layers are great to wear under your clothes on cold days to keep the chill from the air without the bulk of additional jackets or pants. Under Armour offers 3 base layer options to keep you comfortable in anything from brisk fall weather to the dead of winter. Whether you’re getting ready for a fall camping trip, winter skiing, or ice fishing, Under Armour has a base layer for every activity.

How Do Under Armour Base Layers Work?

Under Armour Base Layers consist of men’s, women’s, and kids’ thermal underwear that come in UA Base 2.0, 3.0, and 4.0. These long-sleeved shirts and leggings have a next-to-skin fit without being too tight and will keep you warm and dry during winter activities. Under Armour’s signature Moisture Transport System paired with quick-dry fabric wicks moisture away from the skin while 4-way stretch fabric moves with your body. In order to trap heat and provide warmth, Under Armour base layers have a soft, brushed negative grid interior. Complete with smooth, chafe-free flatlock seams, this thermal underwear from Under Armour will be a go-to style for men, women, and kids alike.

UA Base 2.0 Base Layer

The lightest of the three options, UA Base 2.0 base layer shirts and leggings are great to layer in cool to cold conditions. This type of Under Armour thermal underwear is ideal to wear for a fall or spring run outdoors, or you can layer it under an outfit during outdoor football games to protect yourself from cooler air. 

UA Base 3.0 Base Layer

Ready to hit the slopes? The UA Base 3.0 base layers are just what you need! These thermal underwear pieces are great for being active outdoors in colder conditions. You’ll stay protected from cold wind and air while skiing, snowboarding, or just playing in the snow. The moisture-wicking technology in these base layers will keep you comfortable even if you’re working up a sweat.

UA Base 4.0 Base Layer

For the most brutal winter temperatures, put on UA Base 4.0 base layers for superior warmth. These thermal underwear pieces are great for putting under your hunting clothing to stay warm in your tree stand or layering under your jacket while ice fishing. As the warmest of Under Armour’s base layers, UA Base 4.0 is what you want when sitting in cold weather for long periods of time. 


If you want more information about the line of Under Armour Base Layers, stop into your local SCHEELS or contact us to speak with a Winter Clothing Expert. If you want to learn more about the different types of base layers and what to look for in thermal underwear, check out our blog about how to choose a base layer.

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Article By: SCHEELS