Pack includes 7 pairs of boxer-brief underwear, in assorted solid colors. Elastic waistband, with repeating Old Navy logo. Fly front. Soft-washed jersey for the ultimate soft underwear. We put it throiugh the wringer so you dont have to. Sits at waist. Fitted through hip and thigh. Boys boxer-brief underwear hits mid-thigh. XS = 5-6 yrs. (22 waist). S = 6-8 yrs. (22-23 waist). M = 8-9 yrs. (24 waist). L = 9-11 yrs. (24-25 waist). XL = 11-12 yrs. (26 waist). machine wash according to the care instruction label polyester 40% cotton 60%