Finest quality. Crew Neck. Short sleeve. Stretchy Fabric. size difference notification This is Korean size and smaller than US or UK size. let me tell you what I usually recommend the size... M size = ~5"7", 135 lbs(9.6 stones) L size = ~5"9", 155 lbs(10.8 stones) XL size = ~5"11", 175 lbs(12.4 stones) XXL size = ~6"1", 195 lbs(13.6 stones) If you"re still not sure about your size, pls let me know your Weight and Height in stones or Lbs and Inch. Please kindly be informed that we are not reponsible for getting the wrong size"s item without checking the size from us.