Gregory Men's Zulu 65
Gregory Men's Zulu 65, The Zulu 65 is an all-conditions chameleon, providing exceptional ventilation, solid support, and deceptively generous space in the summer, and improved breathability and balance for high-output winter trekking. With 65 liters of space and an adaptable feature set, it can handle all the gear you need for three nights of January snow camping, and a week's worth or more in the middle of September.