Mountainsmith Zerk Ultralight Hiking Backpack, 40 Liter, Cyan Blue

Price: $224.95
(as of Apr 30, 2025 09:17:05 UTC – Details)

From the brand

Founded in 1979 by a pioneering outdoorsman, Mountainsmith creates gear designed for the rugged Rocky Mountains. Our packs and outdoor products are known for exceptional durability, comfort, and performance, making them ideal for backcountry adventures and active lifestyles. Trust Mountainsmith for reliable gear that stands up to any challenge.

Home of the Lumbar Pack

Mountainsmith’s founder created one of the first lumbar packs and introduced the Delta Load Compression system.

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Function is Foremost

We cater to practical adventurers seeking smart gear that enhances experiences over possessions.

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Adventure is our DNA

We’re explorers with a thirst for the outdoors, providing gear for those who seek adventure and blaze new trails.

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No B.S.

We design gear that’s tough and reliable, ensuring you get there and back every time with a balanced, calculated approach.

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Committed to dependability, honesty, affordability, and durability, we embody the strength of the anvil in our mark. Our philosophy ensures that every product is built to last a lifetime. We stand by our gear with unwavering confidence—our promise is more than words; it’s the essence of our craftsmanship. Forged for life!

FUNCTION-FIRST: An ultralight hiking backpack for thru-hiking and other outdoor activities. 1.9 lbs. empty weight, 22” x 14” x 10”, optimal carry weight up to 30 lbs.
STORAGE: Large main compartment holds up to 40 liters of gear. Large side water bottle pockets with angled openings 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.
PRACTICAL: Roll top closure with side compression SR buckles. Opposing SR buckles for self-closing roll top. Reflective screen printing and cord loops for low light visibility. Front cord loops can be configured with bungee cord (included).
COMFORT: 1.5” removable waistbelt. Waistbelt max 48″. Torso range 16″ – 19″. Side compression straps for securing load throughout entire pack. Removable interior laser cut frame sheet (EVA Atilon) allows for rigidity and airflow.