Boyfish swim trunks, the smaller version of Manfish trunks, come with all of the awesome features for your kid angler. Made of 100% Nylon Taslon, with an elastic waistband and internal draw cord. With a classic fit these cool swim trunks comes with a mesh liner. Specs 100% Nylon Tason Elastic waistband 2 side pockets, zipper back pocket Internal draw cord, mesh, liner 12" outseam, 6" inseam Model is 4'0" 80 lbs. Size M Classic fit, built for comfort