Kids' HEYDUDE Little Kid & Big Kid Hey2O Mesh Water Shoes The HEYDUDE Y Hey20 Mesh gives kids the comfort they need with a sporty twist on a fan-favorite silhouette. Designed with a breathable mesh upper and moc toe styling, this lightweight slip-on is built for school days, weekends, and everything in between. The HEY20™ outsole adds extra flexibility, while elastic laces make it easy for growing feet to slip in and out without missing a beat.