Vapor Basic T, Adult, American BackCountry Sand, Short Sleeve, 5.9oz 100% Spun Polyester. Popular natural colors for runners and athletes. The Solar Performance Short Sleeve offers superior sun protection and performance qualities. Featuring UPF 50+ solar protection, the Solar Performance Short Sleeve is lightweight, comfortable, and sure to keep the sun"™s rays from penetrating through to your skin. This fabric is powered by PURE-tech™ moisture wicking technology. This Vapor Apparel® garment features easy tear away label tags for easy relabeling.