H2H Brand in Korea is a Brand designed by slim fit style FOR men and women in highest qualities and workmanship to bring buyers A different outlook on life of fashion, And mostly styles are Korean sizes and smaller than US or EU size. If you"re not sure about your size, Could you please advise us your Weight and Height in stones or Lbs and Inch. US Small (Asia L)----------Shoulder 16.5"----Chest 37"----Sleeve 27"-----Length 26.5" US Medium (Asia XL)------Shoulder 17.5"----Chest 39"----Sleeve 27"-----Length 26.5" US Large Slim (Asia 2XL)----------Shoulder 16.5"----Chest 41"----Sleeve 27"-----Length 26.5" US Large (Asia 3XL)----------Shoulder 16.5"----Chest 43"----Sleeve 27"-----Length 26.5"