Product Information for Propet Product Description This stylish ankle boot is constructed of washable velour with twin zippers. The removable EVA-cushioned insole offers extra comfort. The internal heel counter and fiberglass shank provide added stability. The low-profile outsole is thermal rubber. This boot has a 4 inch shaft height. Additional Info Removable Insoles , Zipper , Cushioned , Health & Wellness , Zip Up , Low Heel Heel Height: 1" Shaft Height: 4"(Size 7) Circumference: 10"(Size 7) Fit: True to Size Insole: EVA Outsole: TPR Upper: Velour