Zerk 40 UL Backpack Lumbar Packs mean waist pack is your

mean waist pack is your grab-and-go solution for everyday carry and fast-paced trail strikes

Did we say bomber grocery bags

replaceable rubber boot tip

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

Zerk 40 UL Backpack Lumbar Packs mean waist pack is yourA 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