XSHANG Mens Short Sleeve T Shirts Slim Fit Deep V Neck Athletic Casual 100% Cotton Material: 95% Cotton and 5% Spandex, soft, lightweight, quick-drying, comfortable to wear. Perfect for your workout and sports, like fitness, running, cycling or casual. Slim fit deep v neck muscle casual t shirt,more soft and snug fit. Match with coat,jacket, jeans and casual pants, the best choice for spring, autumn and winter. NOTE: Pls reference our size chart intead of amazon size,if you're not sure your size,pls contact us,we will help you to choose. Medium: Chest--39.37&#034;  Shoulder--15.74&#034;  Length--27.95&#034;  Sleeve Length--6.69&#034;  Cuff--12.2&#034;. Large: Chest--41.33&#034;  Shoulder--16.22&#034;  Length--28.42&#034;  Sleeve Length--6.69&#034;  Cuff--12.6&#034;. X-Large: Chest--43.3&#034;  Shoulder--16.7&#034;  Length--28.97&#034;  Sleeve Length--7.08&#034;  Cuff--13&#034;. XX-Large: Chest--45.27&#034;  Shoulder--17.16&#034;  Length--29.45&#034;  Sleeve Length--7.08&#034;  Cuff--13.4&#034;.