ANYTHING-PROOF RUCK The GR2 was designed as the bag you could travel the world with. Now, with waterproof X-PAC and AquaGuard zippers, GR2 is ready for the worst-case scenario where the elements are concerned. Crafted from a fabric initially designed for high-performance racing sails. X-PAC 33 in Multicam is lightweight, ultra-durable, and waterproof-key features needed to withstand the intense forces of the open ocean. This is what we take to Costa Rica - the most bio-intense space, according to National Geographic. This bag is ready for anything-from the rain-soaked trails of Costa Rica to city streets, giving you the confidence to carry your gear in all conditions.