Comfort and convenience come together in the Mystery Ranch Coulee 40 Backpack. Whether you're gearing up for an all-day hike in the hills or keeping things light for a quick overnighter, this ingeniously designed bag has your back. It features an innovative 3-ZIP design that allows us to gain access to the entire main compartment at once. That means no more digging through all our gear just to find an elusive headlamp or hidden camp meal. A lightweight fiberglass frame adds support without the weight when we're hauling a full load into the wild, and the telescoping yoke provides a custom fit that most packs in this size range can't offer.