Breathable mesh reinforced with heat-sealed overlay. Nylon mesh inserts. Suede inserts to reinforce strike areas. Anti-stretch liner and anti-slip rear liner. Suede and rubber reinforced toe cap. Made of fabric with anti-bacterial treatment and shock-absorbing expanded , perforated and breathable. Expanded single-density and shock-absorbing hi-end EVA with Axeler Heel Propulsion. Abrasion-resistant rubber with flex rotax system, perforated and breathable breathing system. Material: Mesh, synthetic.