The Under Armour Base 3.0 Crew Long Underwear Top is your second layer of added warmth to keep you prepared for unexpected cold temps. The fit, shape and ergonomic seam placement allows you to feel amazingly warm without the squeeze of compression. The Under Armour Base Layer 3.0 Crew Top keeps you fresh with the ultra-soft interior and gives you a 4 way stretch of fabric for unrestricted movement.
Flatlock Seams provide Comfort and Eliminate Chafe
Everyone should have these UA base layers to wear. In the winter, the warmth that it keeps in without sweating while being inside or outside is remarkable.