This is the O&';Neill Hybrid UPF 50+ Short Sleeve Shirt 4 way Stretch Features: U.P.F. 50+ Ultraviolet Protection Hydrophobic HyperDry Technology 4-way stretch Rash Protection Protection from the Elements For use in & out of the water Slim Fit Reduces Fatigue From Sun Exposure 5oz Heathered HyperDry Overlock Stitched: Super-Strong Seam The O&';Neill Hybrid Series protects against UV exposure and board rash with casual in-and-out of the water versatility. Our Heathered HyperDry fabric has a soft, cotton-like feel yet dries three times quicker providing all day comfort.