5.3oz, 89% Polyester, 11% Spandex Single Dyed Jersey. 40+ UV protection. Four-way stretch fabric. Rich, cotton-like feel. Stand up collar with reverse coil zipper. Debossed 'Spyder' neck tape. Side gussets. Back dart. Side vents. Iconic rubberized Spyder bug logo at left sleeve. Rubberized Spyder wordmark at center back.