I have neuropathy in both feet and my husband has plantar fasciitis. My yoga teacher recommended it to me and I'm crazy about them. I use them every morning before going for a 2 mile walk and again at night before bed. They are quite stiff, my yoga teacher has a "foamier" hemisphere from OPTP, probably an older hemisphere. I don't see you can order the density. But they feel good and I am happy with the purchase. My trainer also liked them and I am now ordering a set for him too.
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