The Naot Viento boot is an upper calf boot with an inside zipper. This style has a heel cup for stability and support. Naot’s removable, anatomic cork & latex footbed is wrapped in microfiber & leather and molds to the shape of the foot with wear.SIZE INFO: 13″ Shaft Height 14.25″ Shaft Circumference Product measurements were taken using size 37 (US Women’s 6), Width M Please note that measurements may vary by size DETAILS:Fit: True to size, half sizes should size up, runs a little long Sole Material: Polyurethane Heel Height: 1.5 “ Width: Medium Slip Resistant: Yes Orthotic Friendly: Yes Removable Footbed: Yes Naot Women’s Viento Boot Water Resistant Brown Leather