Joined: Sep 2001
Posts: 13,237
Likes: 75
From: Fallbrook,Calif./Palau del Vidre, France
Bikes: Klein QP, Fuji touring, Surly Cross Check, BCH City bike
My first choice is panniers. I hate the hot spots on my back. Cyclists need air to circulate away the sweat. Between back packs and messenger bags, I'd choose messenger bags. Mine has extra straps to secure them at a side angle lower in the back, giving the cyclist a smaller hot spot.