56% Polyester / 30% Recycled Polyester / 14% Elastane. Stretch Fabric. Upf50 Protects Skin From The Sun. Swing Tech™. Upf 50 Sun Protection Fabric. 1/4 Zip With Mock Neck. Tonal Overblocked Seams For A Sporty Look. Small Chev Back Collar. Ventilated. Opti Dri™ Moisture Wicking. Machine Wash. Swing Tech™. Made to maximize your range of motion on every swing, Swing Tech provides noticeably less restriction through re-engineered construction and materials. UV Block. Keep your skin safe from the sun's harmful rays with our UPF50 rated fabric.