Arundels have worked well for me too. I hate the steel/aluminum ones, they never retain their shape and eventually when I hit a bump the bottle goes airborne. Naturally always on a steep downhill where it's a real pain to stop and go back up after it. Not worth it - $4.99 vs $15 gee, all of $10 saved so I can go retrieve my bottles out of a ditch. Gimme cheap plastic or anything else, I'd rather even use a jersey pocket, than suffer steel bottle holders. YMMV. My firmly opinionated 3 cents. (Adjusted for the Euro.)