thought about buying a bag frame but they are freakin expensive and don't always fit properly on the bike so having some leftovers from previous projects, thought I would try to do one by myself. It's the result of a couple of hours with no preparation in advance so I guess it'll do for now.
Take the measures of the frame. Cut a cardboard with the shape of the left and right side (take into consideration that on one side would be the zipper) and then sew them around the edges with the binding part. 2 velcro accessories on each size to attach it to the frame.
