100% Polyester Button closure Machine Wash Material:Cotton Maintenance Tips: Machine Wash/Hand Wash,low iron if necessary,don't bleach,don't exposure,hang dry in the shade,clothes in dark and light colors washed separately. This men's button down shirt is made with a relaxed fit through the arms and torso. A go-to favorite from the you know and love, this long-sleeve shirt is a western wardrobe staple. Design: this formal/casual mens dress shirts features a button down collar and long sleeves. The collar fabric is thicken for a sharp looking. This shirt embraces both modern and traditional style to embody the confidence and coolness of men's fashion. Occasions: This mens button down shirts can be worn tucked or untucked pairing, are perfect for Party, Business, Work, Holiday, Travel, Casual, or Daily Life/ you can match with Flat Front, Jeans, Cargo Pants。