56% Polyester / 30% Recycled Polyester / 14% Elastane. All Over Ventilation Keeps You Cool. Ribbed Collar. 3 Button Placket. Short Sleeve. Stretch To Give Full Range Of Motion. Callaway Logo At Right Sleeve. Model Is 6'2" And Wears Size Medium. Machine Wash. Opti-Therm™Insulated fabric designed to withstand the cold and provide an extra layer of thermal comfort.. Swing Tech™Made to maximize your range of motion on every swing, Swing Tech provides noticeably less restriction through re-engineered construction and materials.. Opti-Dri™. Transfers moisture away from your body to keep you cool and dry.