My wife and I both got our M100's, she got hers a couple of weeks ago and I got mine yesterday. We both noticed how incredible they are on the first use. I simply walked around the house for a bit and the improvement was immediate. We then walked our usual two miles this morning and we are both ecstatic! We are both in our mid 70's and are both fighting cancer. We have made up our minds to push ahead to the end and the Protalus inserts are a blessing to our comfort in our exercising!
My cancer is in my spine and these have offered a level of relief I couldn't find anywhere else. Incidentally, they are replacing a $250 pair of custom inserts for me. My wife and I join in thanking you so very, very much. We wish you continued success in helping people with their problems related to walking, standing, running, etc. We admire your goal and your integrity. All the best! Incidentally, I don't know how to upload a picture.