Zerk 40
Mountainsmith 2021 Zerk 40 Backpack Review
If it ain’t broke, only fix it a little. This is clearly what the team at Mountainsmith was thinking when they came out with 2021’s iteration of their super popular...
Gear Review: Mountainsmith Zerk 40L Fastpack
The Zerk 40L Fastpack is a brand new pack from Mountainsmith designed in conjunction with backpacking athlete Tom Gathman, aka the Real Hiking Viking. It was built for a Fastest...
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