Kaps Bamboo & Alum Relax - comfortable and hygienic insoles with arch support. Made of bamboo fiber, activated carbon and natural potassium alum - ingredients that inhibit the multiplication of dirt. Insoles absorb sweat, ensuring freshness of your feet every day. Designed for urban footwear, leisure, sport and work, especially for people with excessive sweating of feet. Thanks to the use of arch supports, insoles have beneficial effect on the spread of pressure in the front part of the sole. Orthotic insoles help your feet function correctly and eliminate pain. Cushion your feet and relieve pain. Conditions that Kaps Relax Insoles help prevent and cure include: Plantar Fasciitis, Flat Feet, Painful Arches, Shin Splints, Over Pronation, Ankle Pain, Heel Spurs, Morton's Neuroma, Bunions, Metatarsalgia, Aching Legs, Knee Pain and Lower Back problems.