Mountainsmith Zerk 40 Backpack Color:Black Fabric:100% Reycled polyester (315g/m2)

Fabric:100% Reycled polyester (315g/m2)

Stowable ID tag

Strap - 40mm Velcro

The Odyssey Collection captures the unique essence of life’s adventures with an inspired collection of eyewear that combines the latest seasonal colors with leading edge technology

Mountainsmith Zerk 40 Backpack Color:Black Fabric:100% Reycled polyester (315g/m2)Co designed with The Real Hiking Viking, a professional hike really long distances really quickly er, the ZERK 40 was born out of a need for an ultralight pack that can withstand the thousands of miles per year that The Real Hiking Viking already covers. We wanted to make sure that it would allow him to go farther, to hike longer, and to work more efficiently on the trail. Over the course of 2 years of development, the ZERK 40 went through 4