DescriptionAmerican Flag Size chartS---Bust 37.4"---Shoulder 15.7"---Sleeve 9.1"---Cuff 10.4"---Center Back Length 24.8"M---Bust 39.4"---Shoulder 16.1"---Sleeve 9.4"---Cuff 11"---Center Back Length 25.2"L---Bust 42.4"---Shoulder 16.9"---Sleeve 9.8"---Cuff 11.6"---Center Back Length 25.6"XL---Bust 45.4"---Shoulder 17.6"---Sleeve 10.2"---Cuff 12.2"---Center Back Length 26"XXL---Bust 48.3"---Shoulder 18.3"---Sleeve 10.2"---Cuff 12.8"---Center Back Length 26"Long Sleeve Size chartS: Muscle---13"Cuff---7.5"Bust---35"Center Back Length---25.6"M: Muscle---14"Cuff---7.9" Bust---37"Center Back Length---26"L: Muscle---15"Cuff---8.3"Bust---40.1"Center Back Length---26.4"XL:Muscle---15.4"Cuff---8.7"Bust---43.3"Center Back Length---26.8"XXL:Muscle---16.1"Cuff---9.1"Bust---46.4"Center Back Length---27.2"