After reading the reviews for this product, I ordered them for my 10 year old son, who has Severs Apophisitis. He could feel a difference right away, and he has been complaining far less about his foot pain. However, within a week and a half of receiving them, there was already a hole in the gel. I was expecting them to last longer than that. Maybe we just got a defective one, but I was hoping for better quality.After writing this review, the company sent us a replacement along with a bonus. It See full review