Zerk 40 UL Backpack Lumbar Packs Or utilize the standout feature

Or utilize the standout feature - unclip the Gatekeeper hardware

The front panel storage with pass through panel allows stowing a light rain shell for when the weather conditions change

5L of volume to keep your pockets clear and your hands free

Your current daypack has a problem

Zerk 40 UL Backpack Lumbar Packs Or utilize the standout featureA perfect marriage of Mountainsmith's Function First Design and an ultralight ethos, the all new ZERK 40! The ZERK 40L, the original cornerstone of our ZERK UL Series, has been tested & developed thru 10's of thousands of thru hiking miles and co designed with The Real Hiking Viking (AKA Jabba). When the goal is to hike faster, longer and with more efficiency, consider this award winning pack on your next ultralight adventure. For this new addition to