Not too big, but not too small, the Gunnison 18L pack from The North Face is a hydration ready pack for hiking, biking, or traveling. The Gunnison 18 comes ready to go with a 100 oz. reservoir. The burly face fabrics utilized by The North Face makes this pack surprisingly durable, while still keeping the pack under 2 pounds in total weight. Whether hitting the trails or hitting the streets, throw on the Gunnison 18 pack and take a drink.