The Heidi twin gore boot is the quintessential closet staple. Fabric-lined synthetic upper. Fully lined, cushioned insole for all-day comfort. TPR outsole for great flexibility, slip resistance, lightweight, and durability. Features: Memory Foam, Comfort Closure Type: Elastic Footwear Technology: Memory Foam Insole Shaft Circumference: 12 Inches Boot Shaft Height: 4 Inches Shoe Heel Height: 2 1/4 Inches Upper/Outer Base Material: 100% Polyurethane Shoe Lining Material: Fabric Sole Material Content: 100% Thermoplastic-Rubber Calf Width: Regular Toe Type: Plain Toe, Closed Toe Heel Style: Block Heel Country of Origin: Imported