Peak Design's line of bags have become very popular with all kinds of shooters, especially if you are the kind of person that likes every little thing to be in its perfect place. The Peak Design backpack is made of water-resistant polyurethane-coated Kodra fabric, has weather-proof zippers, dual side access zippers, and a unique flex-fold design system that works for a variety of DSLRs, mirrorless cameras, and even drones. The bag also features a number of sub-divided exterior and interior pockets for organizing memory cards, camera batteries, pens, lens filters, and personal items. The expandable 20L design can comfortably hold a full-frame DSLR body and 3 to 4 lenses. The bag features a protected laptop sleeve for computers up to 16 inches. It comes with external carry straps for a tripod, is compatible with roller bags, and features a MagLatch on the top of the bag to keep your gear secure inside. It comes in 20L and 30L capacities and a few different color options.