Recently I purchased this item. I thought for my situation it would work. It did not. Was very uncomfortable to wear. When I requested a refund I got the run around. They do not back their 90 day money back guarantee. I was first offered 10% refund and to keep the item. Then I was offered 20% and keep the item. The last straw was they would let me keep the item, refund my money but only if I provided a positive review of their product. I could not in good conscience do this. Buyer beware.,