100% ozone snapback hatthe 100% ozone snapback hat is a modern twist on the classic baseball cap. A water resistant fabric adds functionality while perforation holes keep you cooler as days get warmer.keep unruly hair in check and add style points with the ozone snapback hat. Whatever the weather, the hybrid jersey cool and dry, the water resistant fabric offers excellent comfort. And laser perforated vents let your skin breathe as you warm up. Bonded and taped seams add comfort and the snapback makes it suitable for most head sizes. Featuresmaterials 98% polyester, 2% elastanehybrid jersey cool and dry, water resistant fabriclaser perforated holes at sidesbonded and taped seamsraised silicone heat transfer logowoven clamp label at backmedium profile snapbackone size fits mostbuy 100% clothing from chain reaction cycles, the world's largest online bike store.