When it comes to traversing the outdoors, a dry pack is a good pack. The SealLine Boundary Packs ($70-$90) offer reliable protection with its PVC-free PU-coated polyester, scrim-reinforced vinyl construction and watertight Dry Seal roll-top closure. The Boundary Pack also features a removable suspension system that includes a breathable/waterproof shoulder strap, adjustable waist belt and side cinch straps.