Two backpacks worth lining up side by side. They score within a hair of each other, so it comes down to the details below.
| Osprey Exos Pro 55 | Six Moon Designs Swift V | |
|---|---|---|
| GearScore | 67✓ | 65 |
| Capacity | 55 L | 56 L |
| Weight | 2 lb 1 oz✓ | 2 lb 4 oz |
| Rated load | 30 lb | 35 lb✓ |
| Fabric denier | 100 D | n/s |
| Price | $330 | $275✓ |
| Type | Ultralight | Ultralight |
| Frame | Internal | Internal |
Highlighted cells mark the better spec: Exos Pro 55 in blue, Swift V 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.
The Osprey Exos Pro 55 and Six Moon Designs Swift V take different routes to the same job. They are close enough that this really is about which handful of specs you weight most.
The Exos Pro 55 is 3 oz lighter. The Swift V is a higher rated load (35 vs 30 lb) and $55 cheaper. Their GearScores land within a couple of points (67 vs 65), so neither runs away with it.
Pick the Exos Pro 55 if you care most about low weight, which makes it the better call for counting grams on long miles. Pick the Swift V if load carry and price matter more to you, or you are focused on rough ground and hard use.
The Osprey Exos Pro 55. It is 3 oz lighter than the Swift V.
The Six Moon Designs Swift V. It is a higher rated load (35 vs 30 lb) than the Exos Pro 55.
They are nearly tied at 67 and 65 on the default algorithm, so re-weight the score to your own priorities to break the tie.
It depends on your priorities. Go with the Exos Pro 55 for low weight, or the Swift V for load carry. The spec table above shows exactly where each wins.