Atom Pack "The Mo" vs. Hyperlite Mountain Gear Southwest
Two carry-on travel backpacks, compared spec for spec.
Atom Pack "The Mo"
| Capacity | 40 L |
| Weight | 0 kg |
| Dimensions | 91×84×74 cm |
| Airline fit | 0% |
| Price | $245 |
Feature by feature
| Atom Pack "The Mo" | Feature | Hyperlite Mountain Gear Southwest |
|---|---|---|
| Storage | ||
| Y | Compression | 5 |
| None | Expanded Capacity | None |
| 2 | Opening | 2 |
| N | Passport | |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| removable | 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 |
| 2 | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| VX21 X-Pac fabric | 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 Atom Pack "The Mo" and Hyperlite Mountain Gear Southwest
- Compression straps: Yes on the Atom Pack "The Mo"; 5 on the Hyperlite Mountain Gear Southwest.
- Hip belt: Removable on the Atom Pack "The Mo"; Yes on the Hyperlite Mountain Gear Southwest.
- Water bottle pockets: 2 on the Atom Pack "The Mo"; 2, side on the Hyperlite Mountain Gear Southwest.
Both have: backpack straps, 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. 0 accept both. 0 accept only the Atom Pack "The Mo", and 23 accept only the Hyperlite Mountain Gear Southwest.
Only the Hyperlite Mountain Gear Southwest fits
Adria Airways, Air Europa, Air Koryo, Air New Zealand, Air Tahiti Nui, Azul Airlines, Azul Linhas, China Southern, Cubana de Aviacion, Hainan Airlines, Korean Air, Philippine Airlines, Royal Air Morocco, Saudi Arabian Airlines, Sichuan Airlines, SilkAir, Silver Airways, Singapore Airlines, SpiceJet, TAAG Angola, TAM Airlines, Ural Airlines, Virgin America.
Atom Pack "The Mo" vs. Hyperlite Mountain Gear Southwest: which should you pack?
The Atom Pack "The Mo" carries the same capacity as the Hyperlite Mountain Gear Southwest (40L vs. 40L), and the two are closely matched on weight. For carry-on flexibility, the Hyperlite Mountain Gear Southwest fits 12% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Atom Pack "The Mo"; if you want to travel lighter, the Hyperlite Mountain Gear Southwest is the better call.