The prAna Orion 1/4 zip is a performance pullover that's ready for action. Chafe-resistant seaming and lightweight quick-drying fabric will keep you comfortable during early morning runs. Lightweight, closed-hole mesh quarter zip top. 100% polyester. Breathable fabric helps wick moisture away. Flatlock seams keep you chafe free. Reflective details for extra visibility. Upf 40. Performance fit. Material: Polyester.