ZERK 40 Backpack - Phantom

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SKU:99516837 ,UPC:




Capacity, Bag Volume, Color Filter, Variant Color,


31 - 40 L
Bag Volume:
2,001 - 3,000 cu in
Color Filter:
Variant Color:


Countless hours, thousands of miles, a hundred beers, and one giant beard later and we are proud to introduce the ZERK 40. Co-designed with The Real Hiking Viking, a renowned thru-hiker with thousands of hiking miles under his belt, the ZERK 40 pack stands alone as the ideal combination of weight, durability, comfort, and accessibility.


  • 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
  • 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
  • 32L / 1952 CI with roll-top compressed
  • Up to 30lbs
  • 1lb 13oz with accessories, 1lb 11oz without accessories


  • SKU: 99516837
  • UPC: 757894331580