Kid's Grade School Wally Youth Sox Tundra Wally Youth Sox for young adventurers. Same classic Hey Dude style you know and love, made for the little ones in your life. They've got the look you love with the ease he needs. Low top slip on style is both cute and functional, making getting 'em dressed easy & quick! Aerated memory foam insole makes these lil' dudes breathable to keep odors at bay. Easy to wash - just remove the insole and toss in the washing machine on cold. Bi-component stretch-knit upper Easy-on System Flex & Fold Technology Ergonomic, leather-lined, removable memory-foam insole