"My knee T Shellz is a wonderful item. The velcro fasteners allow for repositioning around my knee which is added benefit for my or any situation. The variable energy selection brings the proper temperature to the soft tissue need. Long story short, the wrap stimulates the healing process to the 'best' degree. I am certainly a satisfied customer. The construction and element of the wrap look to be reliable for a long time. Thank You MendMeShop."