Mountainsmith Zerk 40L
Co-designed with The Real Hiking Viking, a renowned thru-hiker with thousands of hiking miles under his belt, the ZERK 40 pack stands alone as the ideal combination of weight, durability, comfort, and accessibility.
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The Zerk 40L Phantom Backpack is built to have your back while navigating ridges, scampering up faces, or perusing the desert. This versatile pack uses wide shoulder straps to evenly distribute weight across your torso, in combination with a traditional roll-top design that lets you stuff in that extra piece of gear with ease.