Fesil 1/1 insoles are manufactured from two different densities of silicone, soft and firm. The blue coloured area is extra soft giving greater cushioning. Fresil 1/1 insoles are indicated for the reduction of ball of foot pain in the metatarsal region and for pain in the heels, hips and knees. Produced in an anatomical shape with metatarsal elevation. May also assist in the prevention of callous. Ventilated.