GRF
They work.
They have helped me with knee, hip and lower back pain. My pain issues have been greatly reduced since starting to use the ortho-flex insoles.

OrthoFlexx™ insoles provide the ideal arch support for promoting balance and stability and alleviating foot pain.
OrthoFlexx (orthoflexx.com) has 1,234 customer reviews on Five Star Index, with an average rating of 4.7 out of 5.
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GRF
They have helped me with knee, hip and lower back pain. My pain issues have been greatly reduced since starting to use the ortho-flex insoles.
Antonio D.
It provides support at the foundation allowing you to lift heavier weights at the gym and so are an essential must have item if you having problems with your feet.
Chad H.
No pain not hurting
Hanna S.
Surprisingly so comfortable! It gives all the support that my feet need to stand for long periods of time! I use it on my boots and shoes!
customer
Arrived on time My feet feel amazing
Beat M.
Die Fusstellung wird durch die Einlage bestens unterstützt und korrigiert.
Jeff J.
By far the best insoles I have ever had. At 72 years old I have found that these insoles fit and form very well. I just ordered a second set.
Sean D.
The orthotics that I purchased fit my footwear perfectly. I did not experience any foot pain at all. I noticed a huge difference in the leveling of my hips approximately 3 weeks after wearing them everyday. Highly recommend this product.