White Sierra Gobi Desert Long Sleeve Shirt - Extended Sizes 100% Polyester Imported UPF sun protection fabric reduces your exposure to harmful UVA/UVB radiation Moisture wicking fabric pulls moisture to the surface of the garment for quick evaporation Quick Dry, travel friendly fabric Secure zip pocket Back mesh venting UPF sun protection fabric reduces your exposure to harmful UVA/UVB radiation Moisture wicking fabric pulls to the surface for quick Evaporation Back mesh Venting Roll up sleeves