Patagonia Ascensionist Pack 35L vs. Hyperlite Mountain Gear Southwest
Two carry-on travel backpacks, compared spec for spec.
Patagonia Ascensionist Pack 35L
| Capacity | 35 L |
| Weight | 0.89 kg |
| Dimensions | 65×31×14 cm |
| Airline fit | 13% |
| Price | $179 |
Feature by feature
| Patagonia Ascensionist Pack 35L | Feature | Hyperlite Mountain Gear Southwest |
|---|---|---|
| Storage | ||
| removable | Compression | 5 |
| None | Expanded Capacity | None |
| 0 | Opening | 2 |
| N | Passport | |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| removable | Sternum Strap | removable |
| Inside | ||
| N | Laptop | N |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| 420-denier 100% recycled nylon ripstop, 70-denier 100% nylon ripstop | Dyneema® 200-denier |
Hyperlite Mountain Gear Southwest
| Capacity | 40 L |
| Weight | 0.8 kg |
| Dimensions | 70×28×17 cm |
| Airline fit | 12% |
| Price | $380 |
Key differences between the Patagonia Ascensionist Pack 35L and Hyperlite Mountain Gear Southwest
- Compression straps: Removable on the Patagonia Ascensionist Pack 35L; 5 on the Hyperlite Mountain Gear Southwest.
- Opening: Other on the Patagonia Ascensionist Pack 35L; Rolltop on the Hyperlite Mountain Gear Southwest.
- Water bottle pockets: No on the Patagonia Ascensionist Pack 35L; 2, side on the Hyperlite Mountain Gear Southwest.
Both have: backpack straps, hip belt, sternum strap, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 23 accept both. 2 accept only the Patagonia Ascensionist Pack 35L, and 0 accept only the Hyperlite Mountain Gear Southwest.
Only the Patagonia Ascensionist Pack 35L fits
Caribbean Airlines, Croatia Air.
Patagonia Ascensionist Pack 35L vs. Hyperlite Mountain Gear Southwest: which should you pack?
The Hyperlite Mountain Gear Southwest carries 5L more than the Patagonia Ascensionist Pack 35L (35L vs. 40L), while the Hyperlite Mountain Gear Southwest is the lighter pack at 0.8kg (vs. 0.89kg). For carry-on flexibility, the Patagonia Ascensionist Pack 35L fits 13% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Hyperlite Mountain Gear Southwest; if you want to travel lighter, the Hyperlite Mountain Gear Southwest is the better call.