Need extra room for camera gear, an extended water supply, or hunting accouterments? This expandable Mystery Ranch pack has you covered.
Meet the神秘牧场Terraframe 3-Zip的50，新的秘密武器in carrying “excessive loads,” according to the brand. With this hunting-and-hauling-inspired model from Mystery Ranch, there’s no reason不to go heavier (well, other than your own fitness), even over rugged terrain.
In short:Ideally suited for activity-centered packing trips, the 3-Zip 50 easily adapts between light-duty activity like ridge scrambling (as I did on the Arizona Trail) to heavy hauler.
It uses a “shelf” system common in hunting backpacks to expand, allowing users to carry bulky, heavy loads. Mystery Ranch calls this “OVERLOAD mode.” Stretch water bottle pockets, hydration reservoir compatibility, and daisy-chain attachment points transcend both scenarios.
Testing the Mystery Ranch Terraframe Pack
In the case of theTerraframe，现在打算在架子上携带的东西就像一个硬相机包，旅行包，背包还是挤满了钓鱼，攀岩，或packrafting要领。哎呀，你甚至可以在背带吉他或电锯。
Personalization is another one of this 5-pound pack’s strengths: I fit in a full kit of photo and video gear — including microphones, an audio mixer, an external drive, and the设计峰值旅游三脚架. The ability to carry this kit made for pro-quality in-camp interviews, morning time lapses, and bird-watching candids among the majestic saguaro cacti.
This pack has a fairly standard design in terms of hip belt, back panel, and shoulder straps (padded). The key to using this pack is ensuring comfort as you add weight, whether or not you’re using OVERLOAD. I found the pack’s custom torso fit not only adds comfort but improves load-balancing in the OVERLOAD mode.
The 50L pack’s internal capacity is a nice and accessible volume that rivals other 50-55L sized packs (thanks to its many tie-down straps). In my testing, boosting a normal packed weight of 40 pounds up to 75 pounds was more about deft handling of the OVERLOAD space (to maintain balance) than coaxing comfort out of Terraframe.
- Weight:5 pounds
- 容量：3,051 cu. in.
- 特征:Telescoping yoke, OVERLOAD shelf, compression straps, side and lid pockets
Here’s wherepre-trip planningis critical. I had four add-in pack candidates for photo gear. But in the end, I felt only one had enough structure to avoid collapsing when cinched down into this 3,051-cubic-inch pack’s extensive strap-and-clip pattern. Essentially, whatever you decide to haul, make sure you can safely strap it in without compromising structure. And, as always, pack smart.
One con: In testing, the unique three-zip top flap with access to the pack body was obstructed on the trail when in OVERLOAD mode, as the load-securing straps wrap over the top of the pack. So using the OVERLOAD feature — including the load-securing straps — does limit on-trail access to the lid and full pack body.
神秘牧场的Terraframe 3-ZIP 50包should definitely be on your shortlist if you’re looking for something that can handle large amounts of gear (like for travel photographers, trail crew workers, or hunters). The value of this pack lies in its features and versatility while staying not too heavy.
It’s on the pricier end at $350, but for that price, you can get a super-adaptable pack.