Here is how these two backpacks compare on the numbers. The CDT takes a modest overall edge, led by low weight, but the Levity 45 has its own case.
| ULA CDT | Osprey Levity 45 | |
|---|---|---|
| GearScore | 69✓ | 62 |
| Capacity | 50 L | 45 L |
| Weight | 1 lb 11 oz✓ | 1 lb 12 oz |
| Rated load | 25 lb | 25 lb |
| Fabric denier | 200 D✓ | 30 D |
| Price | $200✓ | $250 |
| Type | Ultralight | Ultralight |
| Frame | Frameless | Internal |
Highlighted cells mark the better spec: CDT in blue, Levity 45 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 ULA CDT against the Osprey Levity 45 is a study in priorities. The CDT wins on low weight and durability, and the Levity 45 pushes back on value.
The CDT is 1 oz lighter, tougher fabric (200D vs 30D), and $50 cheaper. On the default GearScore the CDT leads 69 to 62.
Pick the CDT if you care most about low weight and durability, which makes it the better call for counting grams on long miles. Pick the Levity 45 if you would rather save the difference.
The ULA CDT. It is 1 oz lighter than the Levity 45.
The ULA CDT. It is tougher fabric (200D vs 30D) than the Levity 45.
The ULA CDT, 69 to 62 on the default algorithm. You can re-weight the factors to match your trip.
It depends on your priorities. Go with the CDT for low weight, or the Levity 45 for the price. The spec table above shows exactly where each wins.