I've been curious about these, but am hesitant because they are so short. Are they meant to be worn as an undergarment? Do they ride up while cycling-or is there a light band holding the lower leg in place?

The world is not ready to see me in Spandex (nor am I-for that matter), so I have a comfortable pair of stretch chinos that I wear over cycling shorts. It works out well for me.

I like PI shorts in general, but have always bought the Quest or Attack styles that go to the knee, and they stay put.