The Kamik® Kids Maxx insulated boots for winter keep little feet comfortable down to -40°f, so your toddler can experience maximum coziness during the colder months. Nylon and synthetic leather upper. Reflective technology for added visibility after dark. Fleece lining and insole. A recyclable lightweight synthetic rubber shell to keep feet dry. Round toe. Bungee closure. Rear pull-tab. A rubber outsole with multi-directional treads to keep them stable in the snow. Made in the USA. Product measurements were taken using size 7 Toddler, width M. Please note that measurements may vary by size. Measurements: Weight: 7.7 oz Circumference: 8 1⁄4 in Shaft: 5 4⁄13 in View Zappos.com Glossary of Terms Kamik Kids Maxx (Toddler)