For the money, I'm very pleased with my Saddleman Bags. I have the large size. They have a rigid back that holds the shape nicely, bags in the photo are empty. Another thing I like is the grommets are already in place for mounting. Each buckle has a hole for lock. If we park somewhere, I loop the helmets over the staps and put my locks on. A little security to keep soemone from walking off with our helmets or stuff inside. Useful at events when you are walking far from the bike.
Accessories International has the best prices:
Accessories International