The GoLite ReClipse ½ zips are your go-to high-performance protective layers for spring/summer adventures. The lightweight, moisture-wicking and anti-odor ReClipse Knit fabric is made from recycled polyester, preventing 10 bottles from ending up in the landfill or our oceans. It is ideal for high activity on the water or trail thanks to 50+ UPF protection from the sun’s harmful UV rays. A UPF rating of 50 only allows 1/50th of the sun's UV radiation to pass through it. This means that this fabric will reduce your skin's UV radiation exposure by 50 times (98% UV block) in areas where the skin is protected by the fabric.