The SMAI WKF Shin Insteps have been  manufactured to exact World Karate Federation  specifications. They have been approved for use  in official continental tournaments and  international WKF sanctioned events without  restriction. They offer complete protection for  shin, instep and toe along with added protection  on the heel. SMAI shin insteps are designed to  absorb impact in both receiving and attacking  strikes. They feature injection moulded foam  with a PU lining. Available in red and blue. These  shin insteps are WKF approved for the period  2020-2024 (only in red and blue).