The set is cotton with popper fastenings and cuffed legs, keeping your little one comfortable. This three-piece set from the Little Gent line is the perfect set to add a smart and comfortable look to your little ones wardrobe. 100% Cotton. detachable bow tie Machine washable This Little Gent three-piece set features a mock shirt long-sleeved bodysuit, pair of trousers with fitted braces, and a matching bow-tie.