Modus Man Luxury Dress Shirt for Men 80% cotton 20% Polyester Imported machine washable Contrast fabric inside the collar, cuffs & front button placket Buttons have a very distinctive shape Fashion forward cuff closure Distinctive collar. Collar with hidden button preventing your collar from flaring out and always staying in place Fitted shirt: the Cut is Smaller than the Regular American Size. We recommend buying 1 Size Up. Example: if you are a size L in a Non-Fitted American sized shirt (Gap, Banana Republic, Robert Graham etc.), then you should select a size XL.