It feels as cool as it looks. Merrell's Kid's Reactor Sandal features a strappy synthetic leather upper with plenty of comfortable neoprene and wicking Lycra® stretch along the liner for an adjustable fit that feels made in the shade. Like Merrell's adult sandals the Kid's Reactor Sandal has a Microban® antimicrobial footbed that helps inhibit mildew growth and other potentially smelly stuff. The non-marking Merrell Wave™ Cupsole holds well on damp or slick surfaces especially if your kid plays poolside. Merrell built their Kid's Reactor Sandal with a close-to-the-foot last that fits well with no socks (watch for sand…) or a light to midweight sock on cooler days.