100% Cotton Machine Wash Cotton,Machine wash, easy to wash,after washing ,this kids boys underwear,no pilling The cute designed boy shorts cut covers your entire backside and sits right on your waistline with a Elastic Jacquard Logo band for additional comfort. Breathable, thread does not stick, no smell,we offer this boys underwear made with super soft fabrics from brands. Elastic Leg Bottoms Prevent Riding Up,The Soft Touch design will provide all day comfort for you boy. We provide After-sales Service,If have any quality or size issue,pls contact us Soon,we will arrange replacement or refund to you.