Peak Design
Travel Backpack 45L
$299.95
Released 2018
Best Travel Backpacks · head-to-head
Travel Backpack 45L vs Travel Pack 3
A sourced, side-by-side comparison. Travel Pack 3 is cheaper at $249. Every spec and price links to its source.
Aer
Travel Pack 3
$249Cheaper
Which is better: the Travel Backpack 45L or Travel Pack 3?
The Travel Pack 3 wins 1 of the 1 specs we compare head to head; the other wins 0. The Travel Pack 3 is the cheaper at $249. The Travel Pack 3 both leads on specs and costs less — the straightforward pick.
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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 45L | Travel Pack 3 |
|---|---|---|
| US price | $299.95 MSRP, V2 (BTR-45-BK-2), Black | $249 |
| Brand | Peak Design | Aer |
| Released | 2018 | — |
| Capacity liters | 45 | 35 |
| Weight (lb) | 4.55 | 4.12 |
| Laptop size (in) | 16 | 16 |
| Carry on compliant | Yes | Yes |
| Material | 400D recycled nylon canvas, 900D nylon bottom, DWR-coated polyurethane liner | 1680D Cordura ballistic nylon (bluesign approved), YKK zippers, Duraflex hardware |
| Warranty years | 99 | 99 |
| Dimensions (in) | 22 x 13 x 9.5 in | 21.5 x 13 x 9 in |
| Release | 2018 | — |
Sources — Travel Backpack 45L: peakdesign.com (verified 2026-06-15). Travel Pack 3: aersf.com (verified 2026-06-15).
What's the difference between the Travel Backpack 45L and Travel Pack 3?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Capacity liters: Travel Backpack 45L 45 vs Travel Pack 3 35
- Weight (lb): Travel Backpack 45L 4.55 vs Travel Pack 3 4.12
- Material: Travel Backpack 45L 400D recycled nylon canvas, 900D nylon bottom, DWR-coated polyurethane liner vs Travel Pack 3 1680D Cordura ballistic nylon (bluesign approved), YKK zippers, Duraflex hardware
- Dimensions (in): Travel Backpack 45L 22 x 13 x 9.5 in vs Travel Pack 3 21.5 x 13 x 9 in