Gregory Z55 Pack

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Slim down for summer trips. The updated Gregory Z55 carries like a dream so you won't be sacrificing performance for comfort with this lightweight pack for multiday backpacking.

  • Features

    • New, well-ventilated suspension design and updated, adjustable hipbelt afford the Z55 impressive breathability and comfort on the trail
    • Redesigned Jet Stream™ LTS suspension ensures maximum ventilation without extra points of contact; moisture-wicking mesh in the harness and hipbelt enhances airflow
    • Adjustable hipbelt provides a custom fit with a 1-time adjustment; lumbar pad transfers weight comfortably to your hips
    • Lightweight, perforated HDPE framesheet with a single, hollow aluminum-alloy stay provides support and torsional stiffness without a heavy feel
    • Top-loading pack with side access features a removable top lid along with water-resistant zippers on the side and front
    • Large front bucket pocket expands, allowing you to stash and easily access bulky gear
    • Zippered pocket on top of front bucket pocket offers weatherproof storage
    • Internal reservoir sleeve and dual drinking-tube ports allow you to stay hydrated on the go (reservoir sold separately)
    • Side, bottom and top compression straps eat up unused volume and stabilize your load
    • 2 side pockets hold water bottles or other frequently used essentials
    • Zippered, mesh hipbelt pockets are ideal for stashing gels, lip balm, sunscreen or that essential mini-tool
    • Dual ice axe attachment points let you lash tools or trekking poles to the outside of the pack body
    • 210-denier, double-diamond ripstop nylon delivers high tear strength and abrasion resistance


    Specifications based on size Medium. Specifications for Small and Large torso / waist and hips / base volume / weight are as follows:
    • Small: 16 - 18 in. / 22 - 28 in. / 3,112 cu. in. (51 liters) / 3 lbs. 13 oz. (1.73 kg.)
    • Large: 20 - 22 in. / 34+ in. / 3,722 cu. in. (61 liters) / 4 lbs. 3 oz. (1.9 kg.)
    View all Gregory Backpacking Packs
  • Technical Specs

    Best Use


    Frame Type

    Internal Frame

    Gear Capacity (L)

    56 liter

    Gear Capacity (cu. in.)

    3,417 cubic inches


    3 lbs. 15 oz.

    Fits Torso Length (in.)

    18 - 20 inches

    Fits Waist/Hips

    28 - 34 inches


    Double-diamond ripstop nylon

    Frame Material


    Number of Stays


    Suspended Mesh Back Panel


    Pack Access


    Number of Exterior Pockets

    7 + main compartment



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