Don't let the Patagonia Black Hole 40L Duffel Bag's carry-on friendly size and stowable backpack straps trick you into thinking it's just a handy travel bag that's not suited for hard-wearing outdoor adventures, because then your camping trips and days at the crag would be missing a versatile piece of storage. The smallest bag in Patagonia's Black Hole lineup, the 40L is one of the line's most versatile. Its undeniably strong and burly ripstop fabric withstands the wear of globetrotting travels and daily outdoor adventures, and boasts a highly water-resistant construction that's verging on waterproof when you're caught out in the downpour. Thanks to its more compact size, this bag can be used more readily as a backpack than others in the Black Hole line, so if you're looking to lug gear on campouts and climbing trips, you've got the durable duffel to do it with.