48% Polyester / 48% Recycled Polyester / 4% Elastane 1/2 Zip Self Collar Short Sleeve Stretch Upf40 Protects Skin From The Sun Made With 30% Recycled Polyester Machine Wash Opti-Dri™Transfers moisture away from your body to keep you cool and dry. Swing Tech™Made to maximize your range of motion on every swing, Swing Tech provides noticeably less restriction through re-engineered construction and materials.