Mountainsmith Zerk 40 Backpack

Color: Phantom

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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 iterations and over 5,000 miles of testing on the Wind River High Rout, the Colorado Trail, The Tetons, and more.
  • Wide mouth roll top access with opposing buckles for multiple roll top securing capabilities.
  • Wide, ultra-running inspired shoulder straps for outstanding weight distribution across your torso
  • Dual mesh shoulder pockets (2 pockets on each shoulder strap) for conveniently stashing & organizing on trail essentials
  • Stiff atilon foam & breathable mesh back panel for lightweight and moisture reducing support
  • XXL side pockets for 'can-I-fit-this?' worry free storage capacity