Superfeet CARBON, Thin and Strong Insoles for Pain Relief in Performance Athletic and Tight Casual Shoes, Unisex, Gray, X-Large/F: 12.5+ Wmns/11.5-13 Mens

The arch is a bit high. I would prefer the carbon or plastic to run all the way.

Working well so far, replaced the Merrell liner with these in some hiking boots. Only squeaked for the 1st week of wear. Easy to fit, didn't have to cut for size 12 boot. They are comfortable.

I'm sure the fit was helped by the fact that I planned to use them with size 11.5 shoes, but they are absolutely spot on.I was slightly worried that they would make the shoes a little tight, but they really ARE low profile, as claimed, and mould to my feet really well.Despite that, they do feel pretty substantial; which is perfect as I bought them to replace the unusually flimsy insoles that came with my (relatively high end) hiking shoes, which steadily worked around the side of my instep and out of the shoe after a couple of hours of walking.They're not cheap; but I walk a fair amount, and I'm not disappointed.

This is my second pair of this exact product. I actually wore out the previous shoes but not the superfeet. The hard composite piece looked almost like new after about 10 months and who knows how many miles. The foam part was slightly flattened and starting to wear under my one toe. I could have easily gotten another 6 months out of the previous pair except they stank to high heaven in spite of shoe odor sprays. Since I didn't like the idea of my brand new shoes starting out smelling foul, I just chucked the old superfeet and bought more.There's not a lot to say. They're an insole. They provide good arch support. They may make your feet hurt a week or two before you get used to them. There's a decent chance they'll make your shoes squeak somewhat loudly when you walk. I decided to try some because I developed plantar fasciitis after wearing shoes for overpronating when I should have had neutral. Oops. The superfeet did the trick and my feet eventually stopped hurting.Day to day I don't notice much difference but my feet do hurt less after long walks and the extra arch support is nice. I wear 4E (wide) shoes so I ordered up a size and trimmed the ends. These are better than drugstore insoles and cheaper than custom orthotics so if you think they'd help you, it's not a bad choice.

3 pairs: snowboard, running and dress shoes (teacher). They have all held up where others have failed miserably. Fatigue and snowboard boot pain gone. The carbon sole is supportive and nearly indestructible. I have a regular size 13 foot. thickness and size is perfect