56% Polyester / 30% Recycled Polyester / 14% Elastane. Ribbed Collar. Stretch To Give Full Range Of Motion. Ventilated To Keep You Cool. Swing Tech™. Made With 30% Recycled Polyester. Callaway Logo Right Sleeve. Model Is 6'1" And Wears Size Medium. 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.