Zerk 40L Backpack by Mountainsmith

Ships in 1-2 business days | Based in Golden, CO | Est. 1979

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.

Frameless.

• 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 canister and accessory over-top webbing straps with SR buckle closure
• Front panel bungee attachment system

• Volume: 40L (with fully extended collar)
• 32L with roll-top compressed
• Dimensions: 18.5" x 11.75" x 5.75"
• Recommended maximum load capacity: 30lbs

• 210d EXTREEMA Recycled Nylon Ripstop (UHMPE)
• Recycled 210d nylon SD oxford
• Nylon 100D x Span 840D stretch mesh