90.5% Polyester / 9.5% Elastane. Cooling Keeps You Cool & Comfortable. All Over Ventilation Keeps You Cool. Stretch To Give Full Range Of Motion. Opti•Dri™ Wicks Away Moisture To Keep You Dry. Swing Tech™. Cooling Technology Keeps You Cool & Comfortable. Model Is 6'1" And Wears Size Medium. Machine Wash