More detailed review to follow - we bought for my son-in law who is a pro rugby player who has a ruptured Achilles Tendon and who has only started to use the leg over last couple of days following surgery last week. Early review is that this is an excellent product but at this stage just wanted to throw some praise towards Jerry at Peglegs who was so helpful in helping with our decision to buy. Jerry knew and understood the injury and the importance of getting recuperation and rehabilitation right for a pro sportsman. Purchase and immediate delivery was seamless. Will follow up with more detailed review of the product once Sam has used it in different scenarios over coming weeks