Very cute one piece body suit. Looks great and feels great. Metal button brass - Zinc plated. Contains snaps between legs for closure. Onesies are unisex, worn by both girls and boys. An infant bodysuit is a garment designed to be worn by infants much like a t-shirt; they are distinguished from t-shirts by an extension below the waist, with snaps closure over the crotch. The purpose of the opening at the crotch is to facilitate access to the wearer's diaper. Woodland Camouflage - Infant Drool Sergeant One-Piece Suit.