A close look at two backpacks buyers cross-shop. The Kakwa 55 takes a modest overall edge, led by low weight, but the Alpha AR 55 has its own case.
| Durston Kakwa 55 | Arc'teryx Alpha AR 55 | |
|---|---|---|
| GearScore | 74✓ | 64 |
| Capacity | 55 L | 55 L |
| Weight | 2 lb✓ | 2 lb 14 oz |
| Rated load | 45 lb | n/s |
| Fabric denier | 200 D | 315 D✓ |
| Price | $279 | $250✓ |
| Type | Ultralight | Backpacking |
| Frame | Internal | Internal |
Highlighted cells mark the better spec: Kakwa 55 in blue, Alpha AR 55 in amber. A blank spec is never counted as a win. Capacity is shown for context and is not scored, since more volume is a sizing choice rather than better. GearScore is the overall rating (0 to 100); re-weight it on the full backpack comparison. Prices are current MSRP.
Put the Durston Kakwa 55 next to the Arc'teryx Alpha AR 55 and the trade-offs are clear. The Kakwa 55 wins on low weight, and the Alpha AR 55 pushes back on durability and price.
The Kakwa 55 is 15 oz lighter. The Alpha AR 55 is tougher fabric (315D vs 200D) and $29 cheaper. On the default GearScore the Kakwa 55 leads 74 to 64.
Pick the Kakwa 55 if you care most about low weight, which makes it the better call for counting grams on long miles. Pick the Alpha AR 55 if durability and price matter more to you, or you are focused on rough ground and hard use.
The Durston Kakwa 55. It is 15 oz lighter than the Alpha AR 55.
The Arc'teryx Alpha AR 55. It is tougher fabric (315D vs 200D) than the Kakwa 55.
The Durston Kakwa 55, 74 to 64 on the default algorithm. You can re-weight the factors to match your trip.
It depends on your priorities. Go with the Kakwa 55 for low weight, or the Alpha AR 55 for durability. The spec table above shows exactly where each wins.