These silicon heel pads are hypoallergenic, Non, Toxic, Non, Flammable without odor great knee and, Heel spur back pain, For heel ankle pain etc. The middle area is extra soft and elastic for greater cushioning of sensitive areas. You can highly used for especially where, Sporting activities impact shock reduction is required provides amazing support and comfort to your toes providing flexibility and conforming to bony sections of the foot very useful for any prolonged standing or walking activity. The comfortable gel heel cups designed to be worn in most including athletic, Shoe styles shoes, Dress shoes whether included, And boots or excluded socks.