Published by at 06/08/2026 Update your activewear wardrobe with this Under Armour Heat Gear long sleeve T-shirt. The shirt features a round neckline and a pullover style with a 1/4 zipper, making it perfect for cross-training, CrossFit, hiking, running and jogging. The solid black color with the signature Under Armour logo adds a touch of style to the shirt suitable for all seasons. Made of 100% polyester blended fabric, this T-shirt is machine washable, making it easy to maintain. It is an athletic fit with compression areas at the back, providing support for your workout routine. This Under Armour HeatGear T-shirt is ideal for women of all sizes, with its regular fit and size type.