Hello. They are designed to be sewn in so that it doesn't shift around while you're wearing it, but depending on your riding style/duration/posture/etc. you may be able to get away with it. Our Removable Pad
has silicone grippers on the back of it to help keep it from shifting while you ride, but even that one is designed for shorter trips/spin classes/etc.
Please let us know if you have any questions and we'd be happy to help: firstname.lastname@example.org.