The Carbon Claw Recoil RX-7 4ft synthetic leather punch bag is designed for your heavy workouts, made from strong SV1 cross-fibre synthetic leather with double-stitched seams for extra strength, durability and safety. On each hit, compressed cloth material provides the resistance and the 20mm foam lining delivers feel and response. The top cover has a heavy-duty zip for a safer boxing environment in which to practise your technique and build up strength and endurance.