The new bags all share Lowepro’s All-Weather construction, with built-in rain covers for when conditions change. Some bags have removable laptop sleeves; one even has a flip-up sunshade. From smaller, stealthier bags, to holster-style cases and full-size backpacks, there is something to meet the wide array of needs of professionals and photo enthusiasts. The Pro Trekker 300 AW, 400 AW, and 650 AW are professional-grade backpacks designed to carry large amounts of gear. The model number refers to the largest focal-length lens that can be on the camera when it is inserted in the bag. The bags have removable waist belts that can be used as work belts, and they have hydration-ready side pockets with seam-sealed pouches