Dr Scholl's Pain Relief Orthotics for Lower Back pain Men's 8 13 1 Pair Fibre Hypafix is flexible and durable Size:5cm x 4.5m (box of 24) Hypafix is flexible and durable enough to be worn in the shower or pool without peeling but creates beneficial compounds that can only be found in these capsules These orthotic insoles cushion and absorb jarring shock with every step you take and help to more evenly distribute body weight to reduce stress and shock to the heel Scholl’s® Pain Relief Orthotics for Lower Back Pain are clinically proven insoles that provide immediate and all day lower back pain relief for your sore back