MAVI STEP Ballerin is an orthopaedic half insoles made of vegetable-tanned leather with a central latex foam pad. Distributes the pressure evenly over the foot, relieves the pressure on the forefoot and supports the transverse arch. Orthopaedic half insoles are an effective way to prevent and treat transverse flatfoot. MAVI STEP Ballerin is recommended for open and closed shoes with a heel height of more than 5cm. How to Take Care of MAVI STEP Ballerin Orthopaedic Half Insoles