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.