Great boots for keeping dry and staying bundled up during cold weather. Water-resistant nylon upper. Non-removable felt lining keeps feet toasty warm. Ankle strap creates a comfort fit while sealing in warmth. Adjustable elastic toggle helps to seal out moisture. Thick rubber outsole for durability. Temperature rated to -22F or -30C. Measurements: Weight: 15.4 oz Circumference: 12 in Shaft: 9 1⁄4 in Product measurements were taken using size 13 Little Kid, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.