Lowepro Pro Trekker AW II Camera Bag (Black) Pro Trekker AW 2 Capacity: 2 large pro SLRs, and lenses up to a 600mm f/4.0; including large 6 x 7 camera, professional video system DayPack II is included, and can be attached to the Pro Trekker AW II for additional storage, or worn separately as a backpack. Trekker Accessory Pouch II and Trekker Lens Pouch II are also included and attached (removable) to the Pro Trekker AW II. Lowepro's patented All Weather cover to protect bag and contents from extreme weather, sand, dirt, etc. SlipLock attachment slots allow you to attach additional Lowepro accessories and pouches to the Pro Trekker AW II.