The Bauer Elite Seamless Senior Long Sleeve Baselayer Top features advanced technologies to keep you comfortable and performing at your peak. The 58% Polyamide, 39% Polyester, 3% Elastane blend makes the top lightweight and flexible, while the seamless construction prevents chafing and provides maximum comfort. HeiQ Fresh and Smart Temp technologies prevent odor-causing bacteria and regulate your body temperature. Mesh zones offer targeted ventilation, and the reinforced knit construction in the forearms adds extra durability.