I’ve had to seriously reconsider my shoe choices at age 40. Aches that I could deal with the last 10 years became debilitating mobility issues. In addition to physical therapy, I purchased these sandals as well as the T-100 and T-75 inserts. I mostly have used the sandals since I began PT and changed my shoe priorities to address the injuries. I would attribute something near 50% of finally solving my foot/leg/lower back chain issues to these Cascade sandals. Truly remarkable. I find that walking several miles with them is even preferential to the T-series inserts in my existing workout sneakers, but now that’s making me rethink and buy new sneakers to continue the journey (using the T-Series inserts in my everyday shoes has been the other major game-changer), but shockingly walking in these sandals for miles alleviates pain that is developed from walking the same distance in the sneakers. I’ve owned this product for only a month and have attained this result so… call me a believer. I’ll also mention I called Protalus to verify the sandal fit because I didn’t believe I’d wear a size that small, they were immediately available to speak with, and I still ordered a size slightly larger than they recommended and they arrived slightly larger than I probably needed, so marking down Just Right on fit.