Our CHRYSTEL boot model is stylish and easy to wear every day. This model, specially designed for women with wide calves, is made of high-quality synthetic PU and mounted on a square heel. It is suitable for an XL calf size. The curved and removable insole ensures optimal comfort and allows you to use your own orthopedic insoles. It features an elastic on the boot shaft that allows for an additional 1 to 2 cm of ease at the calf. • Calf width: XL • Heel height: 7 cm • Upper material: Synthetic • Lining material: Textile • Outer sole material: Non-slip synthetic • Insole material: Synthetic • Closure: YKK zipper • Removable insole that allows for additional length and width at the foot to insert an orthopedic insole, for example CHECK YOUR CALF SIZE USING OUR DETAILED SIZE GUIDE!!! Regarding the shoe size, we recommend taking your usual size. If you are between 2 sizes, opt for the larger size.