Men or Male Body Shaper Summer Sleeveless Outdoor Sports Slimming Shirt S: 4"11 to 5"1 inches, 66 to 120 pounds/ M: 5"1 to 6"11 inches, 120 to 165 pounds/ L: 5"1 to 6"11 inches, 165 to 200 pounds/ XL: 5"1 to 6"11 inches, 200 to 220 pounds 3D slim cutting support upper body muscle effectively immediate absorption,immediate transfer,quick drying fuctional fabric provide the function of moisture perspiration,keep your body cool and dry