It was disappointing to receive these slippers and find that the insoles were now made of a cheaper product, mostly soft rubber like most of the shoes everywhere. The original pair, purchased several years ago were made of good quality cork, making them stronger and more comfortable, besides being much better for planter fasciitis. The good news is that the original insoles were still usable and I was able to replace the cheap new ones with the good old ones! Please use cork again even if it means raising your prices a bit for a better quality product. Thank you.