B.BANG Active Basic Athletic Long Sleeves Round Crew Neck Long Sleeve Blouse 92% Cotton 8% Spandex Hand or Machine Wash Cold Do Not Bleach Dry Flat Cool Iron Soft and durable pinhole mesh fabric delivers faster, lighter, cooler performance Thumbholes help keep sleeves down and long sleeves keep off the sun or the cold, great to be workout tops Please refer to our size chart for sizing information.