Gossamer Gear Gorilla 50 vs Durston Kakwa 55
Quick take: The Gossamer Gear Gorilla 50 costs $4 less; the Durston Kakwa 55 carries more (55 vs 50 liters); the Durston Kakwa 55 is lighter (1.97 vs 1.99 lbs).
Which one to buy
Price and weight barely separate these two, so load rating does: the Kakwa 55 is rated to 45 lb, the Gorilla 50 to 30. Both are framed ultralight packs with a removable foam back pad over an aluminum stay, hipbelt pockets, a hydration sleeve and fixed torso sizes, so on paper the Kakwa gives you more for the same money, including 5 L more volume.
Field reports back that up. Reviewers report the Kakwa hauls water-heavy desert loads without folding, its stay transferring weight like heavier packs, and a BV500 fits horizontally. The 2026 update added a redesigned hipbelt with a lumbar pad. On the Gorilla, 30 lb is a real ceiling that water-heavy desert carries overrun, the hipbelt divides opinion near the top of that range, and buyers find the bag cramped on longer food carries with a canister; a BV450 fits cleanly and a BV500 goes in vertically with careful packing. If your loads ever climb past 30 lb, that settles it.
The Gorilla's case is fit, fabric and availability. Its mixed torso and hipbelt sizing gives a semi-custom fit, its Robic body has a strong durability record, its sit pad doubles as a camp seat, and it rewards an already-dialed kit. The Kakwa's weak points are availability, since drops sell out in hours and restocks can take months, a young brand whose long-term durability record is still being written, smaller hipbelt pockets, and direct-only sales with no try-on. And if your total never passes 25 lbs, the Kakwa's frame and belt are capacity you carry without using, and both foam backs run sweaty.
Gossamer Gear Gorilla 50
Best if your loads stay under its 30 lb rating, your kit is already dialed, and you'd rather buy now than wait for a restock.
Durston Kakwa 55
For hikers facing water-heavy or long food carries, since its 45 lb rating and horizontal BV500 fit give headroom the Gorilla lacks, provided you can catch a drop.
| Spec | Gossamer Gear Gorilla 50 | Durston Kakwa 55 |
|---|---|---|
| Price | $275 | $279 |
| Rating | — | 4.81★ (1,003) |
| Type | Ultralight Pack | Ultralight Pack |
| Frame Type | Internal Frame | Internal Frame |
| Capacity | 50 L | 55 L |
| Weight | 1.99 lbs | 1.97 lbs |
| Max Load | 30 lbs | 45 lbs |
| Torso Fit | Sized S-L: S 16-18 in, M 18-20 in, L 20-22 in | Sized S-L, 15-22 in |
| Material | 70D and 100D recycled Robic nylon | Challenge Ultra 200X |
| Back Panel | Removable SitLight foam pad with aluminium stay | Removable foam pad with aluminium stay |
| Adjustable torso | No | No |
| Ventilated back | No | No |
| Raincover included | No | No |
| Hipbelt pockets | Yes | Yes |
| Removable lid | No | No |
| Hydration sleeve | Yes | Yes |
| Fits BV500 bear can | Yes | Yes |
| Warranty | Gossamer Gear one-year warranty against manufacturing defects | 1 year against defects |
Pros & cons
Gossamer Gear Gorilla 50
- ✓The archetypal 'graduation pack' — the usual ultralight path is buying a Mariposa, shrinking your kit, then buying a Gorilla.
- ✓Under 2 lbs with a real stay and hipbelt, it carries 30 lbs honestly — better than frameless rivals at similar weight.
- ✓Symmetric pockets fix the Mariposa's polarizing layout while keeping generous capacity.
- ✓The removable sit-pad back panel remains one of the smartest dual-use designs in UL.
- ✓Robic fabric durability matches its big sibling's strong track record.
- ✓Mixed torso/hipbelt sizing gives semi-custom fit off the shelf.
- ✓A BV450 fits cleanly; careful packers manage a BV500 vertically.
- ✓Gossamer Gear's service reputation applies here too.
- ✗50 liters is tight for bear-canister trips or 5+ day food carries — buyers routinely wish for 5 more liters.
- ✗Same sweaty foam back as the Mariposa.
- ✗The 30 lb ceiling is real; water-heavy desert carries overload it.
- ✗Fixed sizes, online-only fitting.
- ✗Mesh pockets remain the wear point in brush.
- ✗The hipbelt is minimal and divides opinion at the top of the load range.
- ✗No lid, no organization beyond the pocket array.
- ✗Price sits close enough to the Circuit that many first-time buyers default to ULA's bigger volume instead.
Durston Kakwa 55
- ✓A spec-per-dollar leader among ultralight packs: Circuit-beating weight and load rating, and the $199 UltraGrid version undercuts the Circuit by about $100.
- ✓The 45 lb rating is the highest in the sub-2-lb class, and reviewers confirm it hauls water-heavy desert loads without folding.
- ✓The 2026 update added a redesigned hipbelt with lumbar pad, addressing the original's biggest critique.
- ✓Two fabrics: Ultra 200X (listed here, $279) is the tougher waterproof-laminate build, and the $199 UltraGrid option balances weight, durability and price better than anything else near $200.
- ✓Dan Durston answers design questions personally in owner discussions, which has built strong community trust.
- ✓The inverted-U stay transfers load like packs half a pound heavier.
- ✓A BV500 fits horizontally, clearing the canister-country bar.
- ✓Constant sellouts and waitlists tell you what the market thinks of the value.
- ✗Chronic availability problems — drops sell out in hours, and waiting months for restock is normal.
- ✗The foam back panel has no ventilation channel; sweat is the standard tradeoff.
- ✗The 1-year defects warranty is short next to ULA and Osprey lifetime coverage, though Durston offers free repairs for wear and damage.
- ✗Fixed torso sizes with no adjustment.
- ✗The young brand's long-term (5+ year) durability record is still being written.
- ✗Minimal color options and a utilitarian look.
- ✗Hipbelt pockets are smaller than ULA's, a frequent nitpick.
- ✗Direct-only sales mean sizing gambles and shipping waits, with no retail try-on anywhere.
Gossamer Gear Gorilla 50 vs Durston Kakwa 55: common questions
Does the Kakwa 55 carry heavy loads better than the Gorilla 50?▾
Yes. It's rated to 45 lb against the Gorilla's 30, and reviewers report it hauls water-heavy desert loads without folding. Water-heavy desert carries overload the Gorilla, and its minimal hipbelt divides opinion at the top of its range.
Which of the two fits a bear canister more easily?▾
The Kakwa, where a BV500 fits horizontally. In the Gorilla a BV450 fits cleanly and a BV500 goes in vertically with careful packing, and buyers say longer food carries get cramped in its 50 L.
Is the Kakwa's availability a real problem?▾
It can be. Drops sell out in hours and restocks can take months, so plan well ahead for a specific season. The Gorilla is the easier pack to buy on short notice, though both are sized and bought online.