COOL ADVENTURES Made for your most dynamic aerobic activity, this technical shirt beats the heat with our sweat-activated cooling technology. KEEPS YOU DRY Ultra-wicking, cooling fabric manages sweat by reacting with your sweat to lower the material’s temperature. Omni-Freeze ZERO™ sweat-activated super cooling Omni-Wick™ Modern Classic Fit Comfort stretch This product incorporates an antimicrobial treatment intended to protect the product from bacterial growth. The active biocidal substance is: pyrithione zinc. Center Back Length: 28" Uses: Trail Running, Trail-Running / Training Hiking type: Day hiking, Fast hiking, Hybrid hiking, Backpacking 100% polyester ZERO interlock