This is my take on the Flex Belt after a month of using it. If you want to try it out there's a 25% discount here-http://www.theflexbelt.com/keren. I've been incorporating this in my workout routine. :)
Disclaimer: This belt was sent to me for review, but as usual this is my honest opinion. I do not and will not feature any products on my channel if I'm not personally using it.