The ultimate boot for the outdoor warrior! Awarded the Seal of Acceptance from the American Podiatric Medical Association (APMA). Waterproof synthetic upper. Boot style with adjustable hook-and-loop closure. Breathable mesh lining. Flex Fit System allows for additional insoles to be inserted or removed for a custom fit as your childs foot grows. These insoles can reduce or increase the size of the shoe by almost a half a size, which extends the life of the shoe. Flexible rubber midsole and outsole. Machine washable. Imported. Measurements: Weight: 9 oz Product measurements were taken using size 25 (US 8-8.5 Toddler), width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.