I bought these in June and my knees have breathed fluffy butterfly sonnets ever since! Seriously, don't think about the price compared to foam and gell pads, buy these and buy them once. They are unbelievably comfortable, durable, and protective with regard to flints and other awkward objects that can get underneath you during a days work. I am a fencer and have used these for about 6 months without issue. They are a good tight fit in my Dickies work trouser knee pockets (210, Grafter and Eisenhower), so don't slip or move about and are always under the knee when getting on the ground - no need to pull your trouser leg about to get them right. Try them.