REMOVABLE ACCESSORY BAGS. #RB S500-A This bag is 5”L x 5 1/2”W x 4 1/2” H and weighs 3 oz. It is available in red. #RB S500-B This bag is 10”L x 6”W x 4” H and weighs 4 oz. It is available in royal blue. #RB S500-P This bag is 13 1/2”L x 5”W x 3 1/2” H and weighs 4 oz. It is available in black. These bags have removable accessory pockets with clear vinyl windows for a quick reference of contents. This is designed to fit into all R&B bags. Accessory bags have a Velcro® hook and loop on the bottom to prevent loss of articles. All three bags are available to be purchased as a kit. #RB S505 weighs 11 oz.