Envy Men's Mathieu Button Down Long Sleeve Dress Shirt Black 60% cotton Imported Men's Long Sleeve Button Down Shirt Cotton Blend 60%cotton/40%polyester Designed in the USA Dry Clean or Machine Wash Cold Fitted shirt (slim fit): 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, etc.), then you should select a size XL.