comfortable fit, motivational style. the nike efsv (usatf) men's t-shirt is made with a trio of plush fabrics for a soft feel and features screen prints on the front and back for a look that sends an inspirational message.. benefits. rib crew neck with interior taping for durability and comfortable. screen prints for athletic style. slim fit for a close, comfortable feel. product details. fabric: 50% polyester/25% cotton/25% viscose. machine wash.