Great value
I bought this item about 2 years ago since it was so inexpensive.  I use it when playing tennis and it is fantastic.  it is durable and very effective in providing my knees with extra support.  I recently purchase three more to use as backups and to wear around the house.  You will not be disappointed with this item unless your upper calf and lower thigh have significantly different perimeters.
Rating: 5 stars