Tacco Nova Arch Support Inserts are made of an ErgoDyn insole foot-bed with RelaxFlex function, which provides flexibility and comfort. A second layer supports the metatarsal arch and provides relaxation of muscles, tendons and ligaments. Prevent foot fatigue by adding these inserts into men's and women's shoes. The surface is made of ecologically refined sheepskin. Self-adhesive, fits easily in any shoe.