There are plenty of backpacks made with waterproof shells. Very few if any are fully submersible. The Helixot XO 6.2 Backpack is. Thanks to welded seams, coated fabric, and a clever screw-cap closure, it achieves IPX-8 protection, letting you swim, surf, and otherwise enjoy the outdoors without the fear of getting your gear wet. The main compartment is large enough to carry items like your camera, food, smartphone, and headphones, while a small internal mesh pocket keeps smaller items organized and a pair of exterior mesh pockets hold water bottles or anything else that's up to handling the elements on its own.