100% Polyester fiber + spandexMachine WashPermanent Protection: The UPF 50+UV/Sun Protection technology blocks the suns rays and is built into the fabric, unlike other shirts. Our fabric is recommended by The Skin Cancer Foundation* as an effective UV protectant.Performance Wear: Lightweight 100% Polyester fiber + spandex shirt with moisture-wicking technology, which is permanently infused with the fabric to keep you dry. The Anti-odor technology keeps you fresh and odor-free.Active Lifestyle: Built for athletic activities like swimming, fishing, running, hiking, playing baseball, or simply sitting at the beach all day. This t-shirt provides optimal protection for any outdoor activity like mowing the lawn or gardening.Fit Features: The set-in-shoulder construction provides a great fit and a natural, flattering shape. It is true to size in the shoulder and slimmer fitting through the body. Please refer to our size chart to find the best size for you.Best Care: Hand or machine wash in cold water and hang dry. In order to maintain the quality of this shirt, fabric softener is not required and not recommended. Sun protection properties are enhanced after several washes and wear.Size Information:Size M, height 170-175cm, 55-65kg, 121.25-143.3 pounds;Size L, height 175-178cm, 62.5-72.5kg, 137.8-159.8 pounds;Size XL, height 177-182cm, 70-80kg, 154.32-176.37 pounds;Size XXL, Height 182-188cm, 77.5-87.5kg, 170.86-192.9lbs