FREE SHIPPING over $49+ excludes oversized items
Menu avatar

Mountainsmith Zerk 40 Backpack21-50441

Loading Images...
Zerk 40 Backpack Phantom

$219.95 Price

In Stock Ships quickly. Curbside Pickup Available learn more

Shop More Items:

Packs/Bags » Mountainsmith »

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.

Oversized Shipping Fees Apply.

PRODUCT FEATURES:

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

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.

Oversized Shipping Fees Apply.

PRODUCT FEATURES:

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

Related Products

Ecommerce Platform by Nittany Web Works