Cotton-polyester blend Made from a lightweight and super soft fabric that wicks away moisture and has great breathability to prevent overheating, the design performs with insane comfort to give you more confidence in the gym.The durable muscle vest has a perfect athletic fit and neat solid seams, the expertly cut and sleeveless design accentuates your shoulder and arm muscles, the long line loose fit ensures it drapes well over your body, the large arm holes help show off your hard work in the gym and the rounded hem and side slits provide great freedom during intense workouts. The versatile vests, available in 3 different colours per pack, can be worn with a variety of sweatpants, joggers, compression trousers, jersey trousers and Bermuda shorts. These quick-drying sleeveless sweatshirts are perfect for sports and training activities such as yoga, cycling, running, basketball, football and weightlifting; and for casual occasions such as the beach, swimming pools, barbecue parties, gardening and more.