evo.com | Outdoor Research Activewear Tees > ActiveIce technology reacts to rising body heat and cools you down before you overheat, which is the whole idea behind the Outdoor Research ActiveIce Spectrum Sun T-Shirt. UPF 50+ coverage, quick-drying bluesign approved fabric, and side slits for unrestricted movement make it the shirt you reach for on the longest, hottest miles. Center Back Length 71.1 cm / 28.0 in Breathable, Quick Drying, Wicking Weight 4.94 oz/ 140 g bluesign(R) approved 94% Polyester, 6% Spandex Chafe-Free Design with Dynamic Reach | Outdoor Research ActiveIce Spectrum Sun T-Shirt Men's 2027 - Medium Gray in Grey | Spandex/Polyester