What kind of handles do you want on the bag (e.g. Polyfabric™, Nylon, rope or integrated)?
Should it be open at the top, or do you want a zipper closure, or perhaps a drawstring in order to create a carry sack?
Do you want a gusset on the bag (the part in the middle that folds out and allows you to carry bigger items more easily)?
Please feel free to discuss any of these details with your friendly salesperson.