About the material: milk silk high elastic fabric, 85% polyester + 15% spandexFeatures:1. High elasticity, showing strong body, providing close comfort, improving muscle efficiency, reducing muscle vibration and shaking.2. A series of functions such as sweat absorption, perspiration, and quick-drying. The sweat on your body will penetrate into the fabric, and then slowly volatilize during exercise. The polyester fabric has quick-drying properties, and the clothes dry quickly. This series of The function solves the pain of sweating close to your body during exercise! These functions are not available in cotton fabrics, and sweat-wicking and quick-drying fabrics are the trend of fitness clothing!Package: 2 long sleeve compression shirts (if you like a single color change, contact us by mail)Garment Care: Machine or hand wash separately from light colored garmentsPlease refer to the size chart to choose your sizemen's sports shortsQuick Dry: Draws sweat and moisture away from the men's base layer, allowing sweat to dry easily and preventing undershirts from sticking to the body.High Elasticity: 4-way stretch knitted fabric allows your movement to be flexible and unrestricted. Enjoy your workout time.Flat Lock Seam: Flat seam minimizes friction for comfort.SMOOTH AND SUPER SOFT FABRIC: Close fit and freedom of movement, smooth material is softer