Single padding is 3/8" thick, for standard use. Double padding is 5/8" thick, for heavy use and sensitive items. No Padding is just the outer 1000 Denier Nylon, for dustcovers.

Reinforced Opening - For accessing the handle on the model. Choose the number of openings for the number of handles you want access to. Duffle Style Straps - For items that have no handle or if you don't want opening in your bag. Molder Plastic Handle - For items under 20lbs that have no handle. No Openings or Handles - For small items like Pedal Pouches that you can carry in your hand.