Tortuga
Travel Backpack Pro 40L
$350Cheaper
Released 2025
Best Travel Backpacks · head-to-head
Travel Backpack Pro 40L vs Aeronaut 45
A sourced, side-by-side comparison. Travel Backpack Pro 40L is cheaper at $350. Every spec and price links to its source.
Tom Bihn
Aeronaut 45
$355
Which is better: the Travel Backpack Pro 40L or Aeronaut 45?
The Aeronaut 45 wins 1 of the 1 specs we compare head to head; the other wins 0. The Travel Backpack Pro 40L is the cheaper at $350. Get the Aeronaut 45 for the stronger spec sheet, the Travel Backpack Pro 40L to spend less.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Travel Backpack Pro 40L | Aeronaut 45 |
|---|---|---|
| US price | $350 | $355 |
| Brand | Tortuga | Tom Bihn |
| Released | 2025 | — |
| Capacity liters | 40 | 45 |
| Weight (lb) | 4.5 | 2.94 |
| Laptop size (in) | 16 | — |
| Carry on compliant | Yes | Yes |
| Material | ECOPAK EPX200 waterproof sailcloth (100% recycled polyester), YKK AquaGuard zippers, Woojin buckles | 630D bluesign-certified ballistic nylon exterior, 210D Cerylon nylon ripstop interior, YKK Racquet Coil water-repellent zippers |
| Warranty years | 99 | 99 |
| Dimensions (in) | 22 x 14 x 8 in | 21.9 x 14 x 9.1 in |
| Release | 2025 | — |
Sources — Travel Backpack Pro 40L: tortugabackpacks.com (verified 2026-06-15). Aeronaut 45: tombihn.com (verified 2026-06-15).
What's the difference between the Travel Backpack Pro 40L and Aeronaut 45?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Capacity liters: Travel Backpack Pro 40L 40 vs Aeronaut 45 45
- Weight (lb): Travel Backpack Pro 40L 4.5 vs Aeronaut 45 2.94
- Material: Travel Backpack Pro 40L ECOPAK EPX200 waterproof sailcloth (100% recycled polyester), YKK AquaGuard zippers, Woojin buckles vs Aeronaut 45 630D bluesign-certified ballistic nylon exterior, 210D Cerylon nylon ripstop interior, YKK Racquet Coil water-repellent zippers
- Dimensions (in): Travel Backpack Pro 40L 22 x 14 x 8 in vs Aeronaut 45 21.9 x 14 x 9.1 in
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Travel Backpack Pro 40L
Only one whitelisted tester (Wirecutter) hands-on reviewed this exact model, naming it best backpack for dedicated single-bag travelers. They praise its suitcase-like packing, durable water-resistant sailcloth, and best-in-test adjustability and weight distribution, but flag the non-stowable shoulder straps and its 4.5-pound (4 lb 8 oz) empty weight. No other whitelisted source hands-on tested this exact model. (1 sourced review, 1 lab-tested.)
Praised: Suitcase-like, cavernous interior that is easy to pack and well organized; Most adjustable/customizable fit of all packs tested (torso, shoulder straps, waist belt); Durable, water-resistant sailcloth and best-in-test weight distribution under heavy load.
Flagged: Shoulder straps do not stow or remove, unlike competing picks; Heavy at 4.5 pounds empty, roughly 1.5 lb more than most other picks.
Aeronaut 45
No sourced tester review yet.