Genuine Vegetable-Tanned Leather:Unlike other production methods, the leather of Handarte Insoles is processed with Chestnut and Quebracho wood powder for a month.Extra Cushioned Natural Latex:The Orthopedic Latex Layer, which does not contain plastic and is made of resin wood, is placed under the leather.Natural Genuine Wool:Thenatural woolSweat Absorbent: to the bigger pore size on the goat skin and vegetable tanning method, its pores can absorb sweat at . Sweat absorption occurs instantly, and you do not feel wetness on your feet.Foot Odor-Eater:Vegetable tannins and dryness on the feet, to the sweat-absorbent feature, prevent bacterial growth on the feet. Recyclable & Environmental Product:The package and the product are environmentally recyclable.How to use Handarte Insoles:For thermal & orthopedic foot-odor eater insoles, remove the existing insole and insert them.How to Work:Durable hard cushion support under the insole helps to reduce the complication effect of foot health problems, which absorbs the shock and distributes the pressure equally to the foot.Product Lifespan:, it has a 25 months lifespan, depending on the acceleration of sweating on your feet.Renew Handarte Insoles:As the color darkens, it is understood that the pores are completely filled and do not work very well.