Aer Travel Pack 3 Small vs Mountainsmith Mayhem EVO 30L Backpack
The Aer Travel Pack 3 Small is 28L and 1.72kg3.8lb; the Mountainsmith Mayhem EVO 30L Backpack is 29L and 1.76kg3.9lb. The Aer Travel Pack 3 Small is 0.04kg0.1lb lighter. The Aer Travel Pack 3 Small costs $10.949999999999989 less. The Aer Travel Pack 3 Small fits the carry-on limit of 36 of 36 major airlines and the Mountainsmith Mayhem EVO 30L Backpack fits 15; under the seat, 0 and 0 of 26.
| Spec | Aer Travel Pack 3 Small | Mountainsmith Mayhem EVO 30L Backpack |
|---|---|---|
| Price | $229Best | $239.95 |
| Volume | 28L | 29L |
| Weight | 1.72kg3.8lbBest | 1.76kg3.9lb |
| Carry-on compliance | 100%Best | 42% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 48×33×19cm19×13×7.5in | 55.9×26.7×17.8cm22×10.5×7in |
| Laptop | 16" | no laptop sleeve |
| Bottle pockets | 1 | 2 |
| Opening | Clamshell, Lay-flat main compartment | Clamshell, Hybrid panel and top loader with wide clamshell style zippered main compartment |
| Warranty | Lifetime | Lifetime |
| Torso length | n/a | 38.1 to 48.3cm (15 to 19in) |
| Organizer | Yes | Yes |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | Yes | Removable |
| Water-resistant | No | No |
| Rain cover | No | No |
| MOLLE | No | Yes |
| Hip belt | Insert sold separately | Yes |
| Sternum strap | No | Yes |
| Load lifters | Yes | No |
| Shoulder strap | No | No |
| Luggage pass-through | Yes | No |
| Camera compartment | No | No |
| Material | 1680D CORDURA ballistic nylon exterior (bluesign approved), woven lining (bluesign approved), YKK zippers, Duraflex hardware | 420D nylon ripstop dobby with DWR, 150D high density polyester liner, YKK zippers |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Aer Travel Pack 3 Small | Mountainsmith Mayhem EVO 30L Backpack |
|---|---|---|---|
| Air Arabia | Carry-on | Fits | Too big |
| Air Canada | Carry-on | Fits | Too big |
| Air France | Carry-on | Fits | Too big |
| Air India | Carry-on | Fits | Too big |
| Allegiant Air | Carry-on | Fits | Too big |
| ANA (All Nippon Airways) | Carry-on | Fits | Too big |
| Avianca | Carry-on | Fits | Too big |
| Emirates | Carry-on | Fits | Too big |
| Gol Linhas Aereas | Carry-on | Fits | Too big |
| IndiGo | Carry-on | Fits | Too big |
| KLM | Carry-on | Fits | Too big |
| LATAM Airlines | Carry-on | Fits | Too big |
| Lufthansa | Carry-on | Fits | Too big |
| Norwegian Air Shuttle | Carry-on | Fits | Too big |
| Qatar Airways | Carry-on | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| SAS | Carry-on | Fits | Too big |
| Turkish Airlines | Carry-on | Fits | Too big |
| Volaris | Carry-on | Fits | Too big |
| Vueling | Carry-on | Fits | Too big |
| Wizz Air | Carry-on | Fits | Too big |
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Specs come from each brand's own product page. Fit uses listed dimensions in any orientation. How we score carry-on fit.