Co-designed with The Real Hiking Viking, a professional hike-really-long-distances-really-quickly-er, Mountainsmith's 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.
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Expansive front mesh pocket for hauling bulky gear
Large mesh side stash pockets with angled opening for easy reach
Reflective screen printing and cord loops for low light visibility
Front cord loops can be configured with bungee cord (included)
Removable interior laser cut frame sheet (EVA Atilon) allows for rigidity and airflow
Extra wide shoulder straps with adjustable sternum strap (includes safety whistle)
4 Large mesh front pockets on shoulder straps (2 per side)
EVA foam padded shoulder straps
Removable bear canaster and accessory over-top webbing straps with SR buckle closure
Front panel bungee attachment system
210d EXTREEMA Recycled Nylon Ripstop (UHMPE)
Recycled 210d nylon SD oxford
Nylon 100D x Span 840D stretch mesh
18.5" x 11.75" x 5.75"
Waistbelt max 48"
Torso range 16" - 19"
40 L / 2440 CI with fully extended collar
1lb 13oz with accessories, 1lb 11oz without accessories
• 1.5” removable waistbelt
• Large main compartment holds up to 40 liters of gear
• Roll top closure with side compression SR buckles. Opposing SR buckles for self-closing roll top
• Side compression straps for securing load throughout entire pack
• Large side water bottle pockets with angled opening to easily remove and insert items while on the go