The Nina T-Bar made is crafted from super-soft high quality leather with a leather lining and a removable antibacterial leather insole. The sole unit is zero-drop, thin and flexible & the toe box is wide. This style fits to a medium to wide & also suits a high instep. The highly flexible sole is zero-drop, just 5mm thick with a 1mm lug. The wide toe box allows for natural toe splay & movement, perfect for developing feet.