For Hatleys boot sizing . No rain cloud will get in the way of her great day with the Hatley Kids Life of Mermaids Rain Boots! Vulcanized rubber boots. Waterproof construction. Fun mermaid print. 100 percent cotton lining. Removable insole. PVC-free. Slip-resistant outsole. Imported. Measurements: Weight: 11 oz Circumference: 9 1 2 in Shaft: 6 1 4 in Product measurements were taken using size 9 Toddler, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.