Never had problems until 9 months ago. Got it when buddies decided to start walking. Was fine at first. Then my old awesome shoes needed replacement and I chose sketchers that felt okay but had no arch support. We did 2 extra long walks of 6 miles and then 8. That's when pf kicked in. Podiatrist said I have fallen arches and scars along the plantar fascia. He gave me inserts that helped a little but not enough.

I looked at these silly purple plastic things and was pretty skeptical. I had a pair of Champs I purchased years ago but they were 1/2 size to big so I forgot about them. After all the walking my feet got bigger so now these guys are the right size...cool. I pulled out the insoles and what do you know? They had a postit kind of glue on the bottom of them. Sticky but only enough to keep it tight in the shoe. I put the ninjas on and they stuck perfectly to the bottom of the insoles.

Put my feet in the shoes and they felt fantastic. But not fantastic enough to go for long walks yet. I hope that pf condition keeps improving.

Those velcro stickers that came with the short. I'd forget about them. I would experiment with gluing the ninjas to the bottom of the inserts with rubber cement or other flexible glue. Rubber cement is good cuz if you don't like it you're not stuck with it like if you used a silicone glue...pun intended.

I like that the insert is independent of the ninjas. That allows you to try different inserts and use the ninja part for a different experience. Haven't tried it yet but considering it.

I wouldn't mind a little more arch support. Not sure I'd like that or not but I think I would.

I've had these for about 3 weeks and use them every day and I really like them.

I wear a men's 8.5 US, regular width and bought the 8s for a great fit.

Last thing that maybe of help. My Podiatrist recommend
Hoka One shoes because they're stiff and sort of roll as you walk instead of bending. This prevents the pf muscle from getting pulled tight with every step. He said for this reason, running shoes that are designed to bend are bad for everyday use, at least for my scarred pf muscles. I decided to stick with the Champs because they're fairly stiff and I already had them. Hoka Ones are pricey.

Did the trick

I'm so glad that these help so many people! Foot pain is debilitating so it must be wonderful to find something that works. I've been walking about 8k-9k steps a day for several months, and my right arch began to hurt. These claimed to solve all kinds of foot pain, not just plantar fasciitis, so I decided to try them. From the minute I placed them into my shoes and began to walk i experienced sharp pain in my right arch. Since the instructions say to wear them for an hour the first day, then add an hour a day until you are wearing them all day I continued to wear them, but just around the house, for about an hour and a half. Finally I gave up, because I was limping and my right foot was screaming in pain. I had to put my feet up for the next two hours before I could put any weight on my right foot.

These must work well - the reviews speak for themselves. But they didn't work for me.

I use these insoles to promote good foot posture and they work very well.

The supports are plastic but the go underneath the shoe inner lining. Only had them for a couple of days and so far so good. After I've had them awhile I will update my review