How the Gregory Paragon trims weight from the brand's adjustable fit system for long-distance hikers, and where it sits versus the heavier Baltoro.
By Marcus Hale, Lead Pack Research Editor · Published September 14, 2026, 6:03 PM ET · Updated September 29, 2026, 6:16 PM ET
Affiliate disclosure: this page contains affiliate links. Purchases made through them may earn us a commission at no extra cost to you. See our affiliate disclosure.
In plain English
The Paragon is a lighter backpack from Gregory for people who walk long distances, sometimes for weeks or months at a time. It keeps the parts that make a big pack comfortable, a frame and a padded hip belt, but uses lighter materials and less padding.
Think of it as the middle step on a ladder. At the top are heavy, well-padded packs that can carry almost anything. At the bottom are ultralight packs with no frame at all, which feel great with a small load but get uncomfortable when heavy. The Paragon sits in between.
It works best when the gear inside is already fairly light. Long-distance hikers usually get there step by step: first a lighter tent and sleeping bag, then a lighter pack to match. You still pick a size by the length of your back, just as with Gregory's heavier packs.
The Gregory Paragon is designed for long-distance and thru-hikers who want Gregory's adjustable-fit suspension in a lighter package than the Baltoro or Zulu, trimming pack weight through lighter fabrics and a pared-back frame while keeping the same core fit philosophy. The women's-specific version is sold as the Maven.
Positioned below Baltoro and Zulu in overall structure, the Paragon is Gregory's answer to hikers who want a lower base pack weight without giving up an adjustable, hip-focused suspension entirely, which distinguishes it from true ultralight packs that drop the frame or hipbelt padding almost completely. That middle-ground positioning is the main reason it appeals to distance hikers moving away from a heavier pack but not ready to give up a structured hipbelt altogether. Within Gregory's own lineup, the Paragon effectively sits between the fully padded Baltoro and the simplest ultralight packs other brands offer, giving hikers a lighter-weight option without leaving the fit system that drew them to Gregory in the first place.
How does the Paragon fit and carry weight?
The Paragon keeps Gregory's adjustable or size-specific torso length and multi-size hipbelt approach, so fit is dialed in the same way as on the heavier Baltoro: torso length set first, then a hipbelt sized to hip circumference and centered over the iliac crest once loaded. The difference from the Baltoro is in how much structure and padding back that fit system, not in the sizing method itself, so a hiker moving between the two lines doesn't need to relearn how to fit the pack.
Because the frame and hipbelt padding are lighter than on the Baltoro, the Paragon generally carries a moderate load well but isn't intended for the heaviest expedition-style packing lists; hikers running consistently heavy loads are better served by Gregory's more structured lines. For a typical thru-hiking resupply cycle, where pack weight is usually lighter than on a fully self-supported expedition trip, that lighter build is generally an advantage rather than a limitation. Shoulder straps and back-panel foam are also trimmed down relative to the Baltoro, which shaves ounces but means the Paragon rewards a hiker who keeps their overall pack weight closer to the lighter end of the pack's rated range.
What are the Paragon's key features?
Lighter-weight build than Baltoro or Zulu while keeping an adjustable suspension
Top-loading main compartment with an extension collar
External attachment points for trekking poles and a sleeping pad
Adjustable torso length paired with a swappable hipbelt size
Streamlined pocket layout compared to Gregory's heavier-duty lines, reflecting the focus on weight savings
Hydration-sleeve compatibility inside the main compartment
Who should consider the Paragon?
The Paragon suits long-distance and thru-hikers who want to shave pack weight without moving to a frameless or minimally padded ultralight pack, and who still value Gregory's dial-in torso and hipbelt fit system over a generic, non-adjustable design. It also suits hikers upgrading from a basic entry-level pack who want a noticeably lighter carry than Gregory's heavier-duty lines without sacrificing hip-focused load transfer entirely.
Hikers who need to carry consistently heavy loads, or who prioritize maximum ventilation over minimum weight, are usually better matched to the Baltoro or Zulu lines instead. Anyone torn between the Paragon and a true ultralight, frameless pack should weigh how much they value a structured hipbelt against how many additional ounces they're willing to trim, since that trade-off, not raw capacity, is really what separates the two categories of pack.
Frequently Asked Questions
Yes, that's its main use case. The Paragon trims weight from Gregory's standard suspension design to suit long-distance and thru-hikers who want an adjustable, hip-focused fit without the heavier build of the Baltoro or Zulu lines weighing them down on a long trail.
The Paragon uses lighter fabrics and a pared-back frame to reduce overall pack weight, while the Baltoro uses a heavier-duty, more padded frame and hipbelt built for carrying heavier loads. Both share the same adjustable torso-and-hipbelt fit approach and sizing method.
Distance hikers talk in base weight: everything in the pack minus consumables such as food, water and fuel.4 A 2014 Gossamer Gear article set the tiers still quoted today: lightweight under 20 pounds, ultralight under 10 and superultralight under 5.1 These are maker and community definitions, not standards.
The Appalachian Trail Conservancy notes the pack, shelter and sleeping bag, the big three, are usually the heaviest pieces of gear,4 so the pack is one of the three biggest levers. ULA's founder is an example of the scale of change possible: his Pacific Crest Trail thru-hike took him from a 25-pound to a 12-pound base weight.5 A pared-back framed pack like the Paragon suits hikers partway down that path. Some guides quote a 48 to 68 liter span that is not confirmed by a source in this site's library, so check Gregory's current sizes.
What long-distance hikers actually carry
Total pack weight on a long trail is base weight plus food and water, and it swings with every resupply. A 2004 study of Appalachian Trail long-distance backpackers found packs averaging 19.6 kg for men and 17.3 kg for women, or 25.0% and 27.9% of body weight, above the popular 20% guideline.2 That 20% line is a hiking-community rule of thumb without a primary research source. Deuter, a manufacturer, cites 20 to 25% as a maximum,6 and a 2022 review puts the general adult ceiling under 40%.7
The energy cost is steady and cumulative. In one lab study, metabolic energy rose about 7.6 watts for every extra kilogram of backpack load.8 Over a long trail, cutting weight from the pack itself saves effort on every step of every day, which is the whole case for lighter pack builds.
Frame or frameless: the real trade-off
This page contrasts the Paragon with ultralight packs that drop the frame. REI puts the trade-off plainly: frameless packs save weight but are much less comfortable under heavy loads.3 The heaviest days on a long trail, leaving town with several days of food and a full water carry, are exactly when that matters.
A frame's job is to move weight to the hips, which tolerate pack pressure significantly better than the shoulders.9 Fit still decides whether it works. Gossamer Gear notes that shoulder straps set too low reduce weight transfer to the hip belt, while straps set too high pinch the neck.10 Gregory measures torso length from the C7 vertebra to the iliac crest and says it sizes packs identically regardless of gender.11
