Gregory - Z40 Backpack

Gregory - Z40 Backpack
size chart

Check out our Guide to Selecting a Gregory Pack for even more insight. 

Availability: Out of stock

Stock #: 918D- Closeout

The Gregory Z40 is a weekend-sized pack for hikers with Adirondack overnights and New Hampshire hut trips on their to-do list. 

The Z40 sits right at the point in the Gregory line where day packs turn into overnight packs. While overnights are where it excels, longer trips are within reach for experienced packers - one GearX staffer hiked the AT with a 32-liter hydration pack. And even though you might not be packing a huge amount of gear into this pack, you still get superb access to it - besides the top collar, the whole front panel opens forward thanks to a rainbow-shaped zipper, and there is a small, separate bottom compartment that can be combined with the main volume via a zippered divider. 

The Crossflo DTS suspension on the Z40 features a mesh back panel and wire frame for plenty of airflow on hot summer hikes, and the frame and hipbelt team up to support loads up to 35 pounds. The shoulder straps and hipbelt are fixed in place and not size-adjustable like they are on some larger Gregory packs. 

Not every backpacking trip has to be a week-long epic. For those short but sweet getaways, the Z40 is the Gregory pack of choice. 

Feature list from Gregory: 

  • New CrossFlo DTS Suspension
  • Auto-Fit harness system
  • Removable raincover in zippered pocket
  • Sleeping bag compartment with collapsible zippered shelf
  • Dual hydration ports and sleeve
  • Front zippered pocket
  • Top pocket with key clip and a second stash compartment on underside
  • Side compression
  • Dual quick access waistbelt pockets
  • Dual side mesh pockets
  • Dual axe/tool attachment points
  • 210D double diamond ripstop and 330D nylon oxford flatweave


Sizing Chart: 

Size     Volume                Weight                        Torso Length   
M 2441 in³ / 40 L
3 lb 4 oz / 1.50 kg
L 2563 in³ / 42 L
3 lb 7 oz / 1.55 kg
20" - 22"





Gregory Product Video:




Since 1977, Gregory Mountain Products has been a pioneering force in the backpack industry. They were the first to build backpacks with different frame, harness, and waist sizes; the first (and still only) pack manufacturer to develop a waistbelt system that adjusts to fit different hip angles and improves load transfer; and the first to develop the center-locking bar tack, a stitch that ends and locks off on the center of a seam instead of the side for increased strength at major stress points. From the earliest days, Gregory packs were noted for innovative design, ergonomic and comfortable fit, and their obsession with quality, comfort, and durability continues today. 


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