Under Armour Threadborne Seamless HeatGear Long Sleeve 1/2 Zip Shirt Soft knit fabric with engineered mesh ventilation, mapped to the places you need it most Nearly sew-free construction to eliminate chafing 4-way stretch construction Material wicks sweat & dries really fast Anti-odor technology Fitted 64% Polyester, 26% Nylon, 10% Elastane Style: 1347752 Size: Large Shoulder to shoulder: 17.5" Underarm to underarm: 21" Sleeve length: 26.5" Length: 29" *Please check out my other men's clothing