This comfortable slip-on fits both women and men. The technology behind it is PROFESSIONAL (General comfort). The ergonomic design follows the shape of the foot and provides extra support to the arch to achieve the best weight distribution and posture. It is perfect for long working days on your feet and relieves strain on knees, hips and shoulders. The upper part is made of leather. It has an adjustable back strap for the best fit with a recycled metal buckle. The strap can be folded forward if needed. The insole is removable and the footbed is made of leather. A comfortable fabric lining covers the inside of the upper for best comfort. The outer sole is non-slip and made of Polyurethane with double density.