Your best sleeveless tee, just got better. The Under Armour Men's Heatgear Full Compression Sleeveless Tee is a performance must have. UA's signature tee, updated with a new ergonomic fit and Anti-Odor HeatGearŪ fabric. HeatGearŪ moisture transport delivers dry, lightweight performance through any game or workout. Built for speed with our signature compression fit for lightweight, fast-drying performance. Perfect beneath your pads or uniform. For when it's hot. Keeping athletes cool, dry, and light. Ideal use: Extremely warm weather. Over a decade ago, HeatGearŪ, the original second skin layer, sparked the revolution of performance apparel and rendered cotton T-shirts obsolete. Controls odor by Preventing the growth of odor causing microbes. Ultraviolet protection protects your skin from the sun's harmful rays and inhibits premature aging.