SilkWorld Men's Slim Fit Plaid Shirt US Medium Plus Chest:39.0-41.0" Cotton Blended Button-up design shirt.Money-back satisfaction guarantee Before ordering, Please check own size(US) according under size chart This is Slim Fit style, If you have a strong body, please choose one size larger than you usually Because of the Asian size is about 2 or 3 size smaller than US size.For example: usually the Asian