jeansian Men's Casual Slim Fit Short Sleeve T-Shirts Tshirts Tees Tops U008 Cotton Blend Imported and Designed by Jeansian Garment Factory. US S(165-70cm 60kg-65kg) (5'5"--5'7" 133--144lbs) US M(170-175cm 65kg-70kg) (5'7"-5'9" 144-155lbs) US L(175-180cm 70kg-75kg) (5'9"-5'11"155-166lbs) US XL(180-185cm 75kg-80kg) (5'11"-6'1" 166-177lbs) Fited Tshirt, If you want Loose Fit , please Choose 1 size Up