The Gobi Desert Shirt gives you the best protection from the sun with a UPF 30 rated fabric. Mesh venting will keep you cool while hiking in the sun. Roll up your sleeves to prevent overheating. Details: Stretch fabric with built-in stretch for comfort and movement, UPF 30 sun protection helps block damaging UV rays from reaching your skin allowing for more carefree hours in the sun, evaporation fabric moves and disperses sweat away from the body for quick evaporation keeping you comfortable during physical activity, roll up sleeves, back venting, zip-secure side pocket, machine washable for easy care. Center back length: 26''. Material: Polyester, Mesh.