The Ankle made of elastic material. Whether using as your of or as a back-up , you can count the capability and durability this offers. Humans come in many shapes and sizes so we designed a that will accommodate anyone's calf and ankle. Features - Color: Black. - Material: Cotton. - Size: 39.00X12.70X1.20cm/15.33X4.99X0.47in - Usage: desigend to be comfortable enough to built for every day . The design of the leg allow any size calf and ankle to fit comfortable with this . - Made of material which is sturdy and durable to use. Also, you can walk, jump, work out, and even run with this ankle 's design without the slightest down your leg. - With light and small size design, you can easily hide your . - Nice and snug to wear loosely, whatever you prefer! You will not find a better quality the market. - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package list: 1 x protective cover