The versatile Junction 55 allows you to keep your options open when it comes to packing for a big weekend, multi-day section hikes, thru hikes, or to meet the gear demands of changing seasons and environments. Ideal when resupply points are less frequent and/or for equipment flexibility is needed. When the extra volume is not in use, the 55’s top can roll down enough to make the overall size of the pack similar to the 40, but that additional space can come in pretty handy when you need it. For hikes measured more by changes in climate zones and geographical features than distance, the Junction offers the ultimate versatility required to meet those demands.