NEW FOR 2022!GRADE 4 QUALITY.IMPACT PROTECTION - ExternalTraditional Reinforced Cane & Foam Construction with HDF Side Wing.Three Piece Knee Roll with ergonomically shaped Vertical Bolsters provides enhanced shape retention and comfort.IMPACT PROTECTION - InternalIntegral HDF Thigh Protection – PVC faced.Duo-Flex ‘Pro-Tec +’ Knee Roll – Mesh & Cotton faced.Tri-Flex Integral Shin Bolster – Lycra & Cotton faced.ADDITIONAL FEATURES - Traditional 7 Cane Width.Ergonomically Shaped Calf Straps to make fastening easier.Premium PVC Instep with PVC Piping.FACING - Premium Grain PVC.STRAPS - 50mm Calf & Ankle with 25mm Hook & Loop, 25mm Thigh with 25mm Hook & Loop