Liners are the way to go if you still wanna keep the "non spandex" look. I wear a full kit when im on my roadie and liners with shorts when I ride my fixed. I dunno, its a mental thing. I like to go all out with the "look" when I'm on my road bike, chances are I'm not running errands and use clipless. On my fixed I just wear chucks and use pedals with metal clips. I prefer the liners under because they offer some padding. I wouldnt recommend wearing them all day and such just because they can feel gross at the end of the day... ultimately its up to you.. your bottom might get calloused up with all your riding, but if you still wanna wear jeans, liners are the way to go.. Hope that helps! On a side note, liners are usually cheaper than spandex outers too.