Pay for the useful things, not for the right to carry them.
Keep the irreplaceable essentials, wear the bulky clothes, buy low-cost consumables on arrival, and know what must be used up, donated, or left before the next low-cost flight. The calculator compares that plan with every baggage fee you avoid.
Osprey 26+6 + Air Canada personal-item check
The closed pack and the airline maximum have the same three published dimensions, so the match has no paper margin. A packed or bulging bag still has to fit the airport sizer.
43 × 33 × 16 cm. Economy Basic allows only one personal item on specified itineraries; rules and fees vary by fare and operating carrier.
Open current Air Canada rule43 × 33 × 16 cm, 26 L closed. Expansion adds 6 L / 2 inches internally; return it to the closed 26 L state before every personal-item flight.
Open current Osprey specificationsSource details checked October 12, 2026. Recheck the operating airline before each flight.
Your low-cost route
Add every flight or bus leg where an extra bag would cost money. Item prices and repurchase counts stay editable.
Edit bag and airline measurements
Three lists, one travel rhythm
The same item decisions become a flight list, an arrival shopping list, and a before-next-flight clearing list.
Buy on arrival
Before next flight
Item decisions
Volume estimates are for planning, not a guarantee that shapes will pack efficiently. “Buy count” is how many destinations require repurchasing the item.
Add another decision
Protect documents and medication. The cheapest replacement is never worth losing something essential or irreplaceable.