Aug 20, 2018 - 01:07 AM
Hello. This is designed to be a quick fix for a short commute or ride. Generally, padded cycling gear is always designed to be worn right against the skin with no underwear. In this case, you would still want to wear this pad with slim-fitting compression shorts or pants so that it will stay in place better since it is the one replacement pad that is not designed to be sewn into place.
Ideally, it is worn without underwear though your preferences may change if you're only planning to wear it for a quick ride to work or to run some errands, for example.