Super Mario Bros. Boys Athletic Boxer Briefs Underwear, 4 Pack, Sizes 4-10

Whether he's headed to a sleepover or getting ready for school, he'll take on his day in confident style with the boys' 4-Pack Super Mario Boxer

Super Mario Bros Boys Character 3 Pack Athletic Boxer Briefs (Small): Clothing, Shoes & Jewelry

Super Mario Bros. Big Boys (8-20) Basic Underwear in Boys Basic Underwear

Super Mario Bros Ups

Super Mario Bros. Boys Clothing in Kids Clothing

Super Mario Bros Boys Character 3 Pack Athletic Boxer Briefs (Small): Clothing, Shoes & Jewelry

Nintendo Super Mario Athletic Boxer Briefs with Mario, Luigi, Toad, Yoshi, Peach & Bowser, Sizes 4, 6, 8, 10 and 12: Clothing, Shoes & Jewelry

Alpha Underwear

Boys Athletic Underwear

Athletic Trunk Underwear