100% Cotton Pull On closure Machine Wash Soft Cotton Fabric: The men's cotton pajama set with great elasticity is durable, lightweight, breathable, comfortable and moisture wicking for wearing Fashion Henley Design: Mens short sleeve top for a classic fit and style, perfect fit for your daily wearing Stay-Put Waistband: The pajama bottom with high elasticity waistband leaves no mark on your skin, better fitting with utmost comfort Invisible Side Pockets: Roomy pockets on both sides will hold your phone and wallet well to facilitate your daily life Tag-Free Minimalism: Zero-sense experience with imprint-tag design, reduce friction and itchy, more friendly to the skin.