YYGIFT Quick-Drying Mens Hardwear Bodybuilding Tank Tops for Crossfit Training Running Sports Material:polyester + Spandex / Lycra Machine Washable Features :quick-dry ,high-elastic,comfortable Perfect for everyday casual wear,crossfit,running and other sports indoors and outdoors . The elastic fabric can provide appressed comfort,closely adhibit to the muscles of the athletes, good to show their figure. Tight fitting - Please check our size chart before you select your size.If you prefer a looser fit,go up a size.