Whether I get a Dahon or a Downtube, I'm going to need some kind of bag to conceal the bike as I bring it through train stations, past office security, etc. The most common bag I see for sale is the Dahon El Bolso bag . The bag design looks fine, but why'd they have to plaster a Dahon logo on the side? Also, it's almost $60. I'm thinking that a plain black bag would be best. Any recommendations for a stealthier / cheaper option? Must still be lightweight and easy to carry.