• FUNCTION-FIRST: An ultralight hiking backpack for thru-hiking and other outdoor activities. 1.7 lbs. empty weight, 20” x 12” x 9”, optimal carry weight up to 20 lbs.
• STORAGE: Large main compartment holds up to 23 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: Lid top closure with side compression SR buckles. Front SR buckle closure. 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.
• FORGED FOR LIFE: All Mountainsmith packs and gear are known for their quality and are built to last. Co-designed with The Real Hiking Viking, a renowned thru-hiker with thousands of hiking miles under his belt, the ZERK 25 pack stands alone as the ideal combination of weight, durability, comfort, and accessibility.