Corsurf Waterproof Dry Backpack 40L vs Exped Lightning 40
The Corsurf Waterproof Dry Backpack 40L is 40L and 1.18kg2.6lb; the Exped Lightning 40 is 40L and 1.15kg2.5lb. The Exped Lightning 40 is 0.03kg0.1lb lighter. The Corsurf Waterproof Dry Backpack 40L costs $159.95999999999998 less. The Corsurf Waterproof Dry Backpack 40L fits the carry-on limit of 14 of 36 major airlines and the Exped Lightning 40 fits 0; under the seat, 0 and 0 of 26.
| Spec | Corsurf Waterproof Dry Backpack 40L | Exped Lightning 40 |
|---|---|---|
| Price | $79.99Best | $239.95 |
| Volume | 40L | 40L |
| Weight | 1.18kg2.6lb | 1.15kg2.5lbBest |
| Carry-on compliance | 39%Best | 0% |
| Personal-item compliance | 0% | 0% |
| Dimensions | 53.3×38.1×20.3cm21×15×8in | 65×31×23.1cm25.5×12×9in |
| Laptop | sleeve, size not published | no laptop sleeve |
| Bottle pockets | n/a | 2 |
| Opening | Roll-top, rolling hook-and-loop closure, splash-resistant outer pocket | Roll-top, roll-top with top zip |
| Warranty | Lifetime | 5 years |
| Torso length | n/a | 43.2 to 55.9cm (17 to 22in) |
| Sizes | n/a | S/M, L/XL |
| Organizer | No | No |
| Shoe compartment | No | No |
| Hydration sleeve | No | No |
| Frame sheet | No | Yes |
| Water-resistant | Yes | No |
| Rain cover | No | No |
| MOLLE | No | No |
| Hip belt | No | Yes |
| Sternum strap | No | No |
| Load lifters | No | Yes |
| Shoulder strap | No | No |
| Luggage pass-through | No | No |
| Camera compartment | No | No |
| Material | Waterproof fabric with sonic-welded seams | 210D HMPE ripstop nylon (1,000 mm water column) and recycled 600D polyester (1,500 mm), PU coated, bluesign approved; 6061-T6 aluminum stay |
| Last checked | 2026-10 | 2026-09 |
Where their airline fit differs
| Airline | Limit | Corsurf Waterproof Dry Backpack 40L | Exped Lightning 40 |
|---|---|---|---|
| Air Canada | Carry-on | Fits | Too big |
| Allegiant Air | Carry-on | Fits | Too big |
| ANA (All Nippon Airways) | Carry-on | Fits | Too big |
| British Airways | Carry-on | Fits | Too big |
| easyJet | Carry-on | Fits | Too big |
| Frontier Airlines | Carry-on | Fits | Too big |
| Lufthansa | Carry-on | Fits | Too big |
| Norwegian Air Shuttle | Carry-on | Fits | Too big |
| SAS | Carry-on | Fits | Too big |
| Singapore Airlines | Carry-on | Fits | Too big |
| Southwest Airlines | Carry-on | Fits | Too big |
| Turkish Airlines | Carry-on | Fits | Too big |
| Volaris | 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.