Does the Peak Design Travel Backpack 45L fit AirAsia's cabin bag?

Yes. Fits with at least 0 cm to spare on every side. It's too big for AirAsia's personal item (16 cm too long).

Fits

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Side the bag fails onPart that sticks outSizer frame

Fits

Fits with at least 0 cm to spare on every side.

BagPeak Design Travel Backpack 45L

Cabin bagAirAsia

Length: 56of 56 cmExact fit
Width: 33of 36 cm3 cm spare
Depth: 23of 23 cmExact fit

All sides added up: 112 of 115 cm

Weight7 kg limit, shared

Packed weightkg

Empty it weighs 2 kg, leaving 5 kg for your things.

We haven't checked this bag's size against the brand yet.

See bags that fit AirAsia

AirAsia rules checked 2 Nov 2026. Source. Sizes include wheels and handles. Some details are still being confirmed.

Side by side

Peak Design Travel Backpack 45L against AirAsia's limits. Bags can be turned, so the longest side is compared with the longest limit.

Cabin bag: 56 × 36 × 23 cm or 115 cm total, 7 kg
Side	Bag	Limit	Result
Length	56 cm	56 cm	Exact
Width	33 cm	36 cm	3 cm spare
Depth	23 cm	23 cm	Exact

Personal item: 40 × 30 × 10 cm, 7 kg
Side	Bag	Limit	Result
Length	56 cm	40 cm	16 cm over
Width	33 cm	30 cm	3 cm over
Depth	23 cm	10 cm	13 cm over

All sides added up: 112 of 115 cm.

Empty it weighs 2 kg of the 7 kg limit.

AirAsia rules worth knowing

Cabin bag: Either the box size or 115 cm total is accepted.
Personal item: Some guides list 40×30×20.
Both items together must stay under 7 kg.

Airlines where the Peak Design Travel Backpack 45L fits

Singapore Airlines Frontier Airlines Southwest Airlines All airlines

Bags that fit AirAsia's cabin bag

Biggest first.

Away Carry-On55.1 × 36.6 × 22.9 cmTightAllowed on total size, 0.4 cm to spareBag page
Osprey Farpoint 4055.1 × 35.1 × 23.1 cmFitsAllowed on total size, 1.7 cm to spareBag page
American Tourister Soundbox Spinner 5555 × 40 × 20 cmTightAllowed on total size, 0 cm to spareBag page
Horizn Studios H5 Cabin Luggage55 × 40 × 20 cmTightAllowed on total size, 0 cm to spareBag page

Good to know

Will the Peak Design Travel Backpack 45L still fit AirAsia when it's packed?

It should. It has 0 cm to spare on its tightest side, and a stuffed front pocket usually adds 3 to 5 cm, so don't overfill the outside pockets.

What is AirAsia's cabin bag size limit?

AirAsia's cabin bag limit is 56 × 36 × 23 cm, or up to 115 cm in total, up to 7 kg shared across your cabin items.

Which other bags fit AirAsia?

Osprey Farpoint 40 fits with room to spare. Away Carry-On, American Tourister Soundbox Spinner 55 and Horizn Studios H5 Cabin Luggage are right on the limit.