I actually bought these to go underneath my uniform pants while working on the ambulance. They work quite well for that, assuming your pants have big enough leg openings to accommodate them. I actually find that I use them over my pants while working on my vehicles. I can kneel on concrete for hours without getting sore. These things are fantastic. At first I thought the joint would be gimmicky, but after using them for a few months I don't know if I could go any other way. The straps adjust well and have a keyhole latch for removing them quickly without undoing your adjustments. They stay where they are meant to stay on your leg.