Ringside Elite #4 Outfit, Black/Grey, Large Boxing jersey outfit is made of comfortable and lightweight 100% polyester fabric with KO SWEAT TECH for added breathability in the ring This coordinated jersey is designed with a T-back that helps keep it from slipping off the shoulders during competitions The trunks feature a full 4" waistband and internal drawstring to stay secure during fights Perfect outfit set for the gym or competition Search Ringside Elite #4 Outfit for this same set in adult sizes