Gossamer Gear Murmur 36 Hyperlight Backpack vs Zpacks Nero Classic 40L
The Gossamer Gear Murmur 36 Hyperlight Backpack is 36L and 0.3kg0.7lb; the Zpacks Nero Classic 40L is 40L and 0.33kg0.7lb. The Gossamer Gear Murmur 36 Hyperlight Backpack is 0.03kg0.1lb lighter. The Zpacks Nero Classic 40L costs $91 less. The Gossamer Gear Murmur 36 Hyperlight Backpack fits the carry-on limit of 35 of 36 major airlines and the Zpacks Nero Classic 40L fits 1; under the seat, 0 and 0 of 26.
| Spec | Gossamer Gear Murmur 36 Hyperlight Backpack | Zpacks Nero Classic 40L |
|---|---|---|
| Price | $350 | $259Best |
| Volume | 36L | 40L |
| Weight | 0.3kg0.7lbBest | 0.33kg0.7lb |
| Carry-on compliance | 97%Best | 3% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 53×28×13cm21×11×5in | 63.5×29×15.25cm25×11.5×6in |
| Laptop | no laptop sleeve | no laptop sleeve |
| Compartments | 1 | 1 |
| Bottle pockets | 2 | 2 |
| Opening | Roll-top, Roll top with side connection points | Roll-top, Roll top closure |
| Warranty | 1 year | 2 years |
| Torso length | n/a | 46 to 56cm (18 to 22in) |
| Organizer | No | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | Yes |
| Frame sheet | No | No |
| Water-resistant | Yes | Yes |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | Insert sold separately | Insert sold separately |
| Sternum strap | Yes | Yes |
| Load lifters | No | No |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | ALUULA Graflyte V52 (100% polyethylene), PFAS free | Ultra 100X (3.3 oz/sqyd) base and back, optional Ultra TenX (2.9 oz/sqyd) front, stretch mesh pockets, taped seams, PFAS free |
| Last checked | 2026-09 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Gossamer Gear Murmur 36 Hyperlight Backpack | Zpacks Nero Classic 40L |
|---|---|---|---|
| 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 |
| AirAsia | Carry-on | Fits | Too big |
| Alaska Airlines | Carry-on | Fits | Too big |
| Allegiant Air | Carry-on | Fits | Too big |
| American Airlines | Carry-on | Fits | Too big |
| ANA (All Nippon Airways) | Carry-on | Fits | Too big |
| Avianca | Carry-on | Fits | Too big |
| British Airways | Carry-on | Fits | Too big |
| Cebu Pacific | Carry-on | Fits | Too big |
| Delta Air Lines | Carry-on | Fits | Too big |
| easyJet | Carry-on | Fits | Too big |
| Emirates | Carry-on | Fits | Too big |
| Frontier Airlines | Carry-on | Fits | Too big |
| Gol Linhas Aereas | Carry-on | Fits | Too big |
| IndiGo | Carry-on | Fits | Too big |
| JetBlue Airways | 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 |
| Qantas | Carry-on | Fits | Too big |
| Ryanair | Carry-on | Fits | Too big |
| SAS | Carry-on | Fits | Too big |
| Southwest Airlines | Carry-on | Fits | Too big |
| Turkish Airlines | Carry-on | Fits | Too big |
| United Airlines | Carry-on | Fits | Too big |
| Vietjet Air | Carry-on | Fits | Too big |
| Volaris | Carry-on | Fits | Too big |
| Vueling | Carry-on | Fits | Too big |
| WestJet | 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.