The REI Co-op Flash Air 50 is an ultralight backpack with 50 L of capacity and an internal frame. It weighs 1 lb 14 oz, carries up to 25 lb, and lists at $299.
GearScore breakdown
How this backpack earns its 63 on the default algorithm, factor by factor
Have specific needs in mind, like the lightest pack for a thru-hike, the most load-carry for a heavy winter kit, or the best value? Rank this backpack against every other on your own custom scoring algorithm.
Open the full backpack comparison →Specifications
| Type: | Ultralight |
|---|---|
| Frame: | Internal |
| Access: | Roll-top |
| Material: | Nylon |
| Capacity: | 50 L |
| Weight: | 1 lb 14 oz850 g |
|---|---|
| Max load: | 25 lb |
| Denier: | n/s |
| Torso range: | 18 to 20 in46 to 51 cm |
| Price: | $299 |
How scoring works
The same GearScore engine the comparison pages use. This is the default weighting; open the full comparison to re-weight it around your trip.
GearScore blends published specs into one 0 to 100 number. Capacity is a "good enough" gate; weight, rated load, and fabric denier score on a sliding scale. Price is a lever presets turn on.
Customize on the full comparison →- Sufficiency
- Only needs to be good enough. Capacity works this way: enough volume to carry your trip and the pack is set, extra liters add no points.
- Monotonic
- More (or less) is always better. Lighter beats heavier, a higher rated load beats a lower one, and tougher fabric beats thinner, so they score on a sliding scale.
- Preference
- Type and frame are personal preference, never scored. They only filter the list.