More than an ordinary shirt, this fast wicking polo features sweat-activated cooling designed to keep you cool and dry under even the most extreme conditions. And as if that wasn't enough, it also offers UPF 30 sun protection. FEATURES: Omni-Freeze ZERO® sweat-activated super cooling Omni-Wick® Omni-Shade® UPF 30 sun protection Antimicrobial treatment protects this product from bacterial growth Center Back Length: 26" Imported Uses: Hiking FABRIC: Omni-Freeze ZERO® Interlock 100% polyester Omni-Freeze® ZERO Sweat-Activated Cooling OMNI-WICK® High-Performance Wicking Fabric OMNI-SHADE®  Sun Protection