92% Polyester / 8% Elastane. Cooling Keeps You Cool & Comfortable. Machine Washable For Easy Care. Stretch To Give Full Range Of Motion. Opti•Dri™ Wicks Away Moisture To Keep You Dry. Swing Tech™. Ribbed Collar. Textured Fabrication. Swingtech Engineered Seams. Model Is 6'1" And Wears Size Medium. Machine Wash