O'Zone 50+ U.P.F. is the pinnacle in quality, wearable sun protection. Ergonomic seam placement, 4-way stretch, and quick-dry properties provide exceptionally soft feel and comfort. 50+ U.P.F. Maximum Protection Strategic Seam Placement 4-way Stretch Quick-Dry Rash Protection Slim Fit Reduces Fatigue from Sun Exposure Premium 6oz Polyester Overlock Stitched: Super-Strong Seam