"Size:X-Large (43-45 inches) Insole full silicon is super comfortable insole with soft relief zones. It reduces the painful shock waves and lightens the load to feet, knees and the spine. Anatomically designed for better comfort and fitting, it provides even pressure distribution throughout. Made of silicon : high cushioning coefficient, next to natural adipose, shock absorption and energy return, long functional life, odourless, easy to clean and maintain. Anatomical and streamlined shape : ensures better weight distribution, reduces peak loading, helps correct body alignment, reduces strain on ligaments, muscles and tendons. Extra soft spot : focused pain relief and relieves pressure at the base of the calcaneus. Thin construction : can easily be put into shoes, convenient and comfortable."