Rieker 98860-22 Women's Calf Length Boots in Nut Brown. Upper Material: Synthetic Leather, Lining Material: Velvet Fur, Sole Material: TPE. Features include warm lining, round toe shape, and a relaxed shoe width. Heel Height: Low (2.5-4.9cm), Shoe Shaft Height: Ankle Boots. Rieker's Estella boots offer a classic equestrian look with ruching detail, duo buckle trimmings, and plaited embellishments on the calves. Side zips provide easy access, and low block heels offer a subtle height boost. The top buckles are functional for adjustable calf fitting. Please note: Rieker footwear is designed for comfort and durability, but waterproof properties cannot be guaranteed unless expressly stated.