Short Sleeve Tactical UA Tech Tee The performance upgrade from your cotton T-shirt. UA Tech(TM) fabric moves moisture away from your body keeping you cool, dry and comfortable with a soft, cotton-like feel for total comfort. Armour(R)Stretch improves mobility and accelerates dry time with lightweight fabrics built in a 4-way stretch. Raglan sleeve construction allows for total mobility and a full range of motion, while eliminating shoulder seam abrasion points. 95% 4.6 oz. Polyester, 5% Elastane.