Townforst Womens Rubber Midcalf Knee High Rainboots Rubber Shaft measures approximately 14" from arch Boot opening measures approximately 15" around Lightweight, waterproof upper made from rubber. It's a synthetic rubber that's designed to retain its flexibility and traction in both warm and cold temperatures. Rain boots for wear in rain and mud. For fall and winter use, warm socks are recommended. Cotton Lined. Vulcanized natural latex construction provides a seamless waterproof shell;Rubber outsole offers traction in wet conditions. Measurements: Shaft measures approximately 14" from arch; Heel Height: 1 in; Circumference: approximately 15". Dazzle in these beautifully chic rain boots this rainy season!