The secret of the trendy and incredibly comfortable OTZSHOES footwear is renovated, anatomically shaped, flexible, antimicrobial Cork Cushion -insole. Suitable also as work shoes. NOTE! The shoes should be tight fitting and the toes attached to the fabric (no "room for growth")! The upper is flax that stretches in use! Patented cork insole conforms to your foot, cushions and supports your every step. The shoes are also comfortable to wear without socks.