Abu/Abu System Back Pack/System Backpack; Size: W11.0 x H20.5 x D7.1 inches (28 x 52 x 18 cm); Capacity: Approx. 6.5 gal (25 L); Material: 100% polyester; With its ample storage system and expandability, this multi-functional bag series can be used anywhere. New 2019 Camo Color. A multi-functional bag series that can be used anywhere. Multi-functional backpack with versatile storage and attachments sold separately. A new type of fishing bag with full interior functionality.