Size Difference Notice This size notice is for normal body type. If your weight is more than or less than the measurement given below, please consider ordering one size bigger or one size smaller. This brand, TheLees, is almost slim fit style. If you haven"t tried slim fit before, you would feel a bit tight so please buy one size bigger. Tag size given below is the size which is attached on cloth and label. For example, 5" 11", 165 lbs : If you like slim fit, please choose L sizes{L(US M)}. IF you like normal fit, please choose {XL(US L)}. M(US S) = 5"7"(170cm), 140 lbs(64kg) L(US M) = 5"9"(175cm), 155 lbs(70kg) XL(US L) = 5"11"(180cm), 175 lbs(80kg) 2XL(US XL) = 6"2"(188cm), 190 lbs(86kg) If you are still unsure about size, Could you please tell us Weight and Height in stones or Lbs and Inch? [Measurements] M(US S)... shoulder 42cm, chest 50cm, sleeve 64cm, length 68cm L(US M)... shoulder 44cm, chest 52cm, sleeve 65cm, length 70cm XL(US L)... shoulder 46cm, chest 54cm, sleeve 66cm, length 72cm 2XL(US XL)... shoulder 47cm, chest 56cm, sleeve 67cm, length 74cm