A total of 1 review of this product on Reddit.
30th May 2018
I know you said Amazon, but just as a frame of reference. I have these: https://www.roguefitness.com/rogue-monster-bands
If I was picking two only for mobility purposes, I’d grab the green and the orange. Orange is good for shoulder dislocations, pull-aparts, etc. Green is great for various hip MOBs and stuff.
So just find the comparable on Amazon.
For a combo belt, I enjoy my Spud Inc Belt Squat. A bit pricey: https://www.amazon.com/Black-Weight-Lifting-Strength-Training/dp/B01CF60KCY