The quick verdict
The CabinFly Bellanca is one of the smartest personal-item backpacks I have seen, because it was designed around the actual size limits airlines enforce, not around looking cool in a product photo. At 40 x 30 x 10 cm compressed and expanding to 40 x 30 x 15 cm, with 18 litres of space and a weight of just 580 grams, it fits the free personal-item allowance on Air Canada, WestJet, and a long list of European carriers. If you fly basic fares and want to skip baggage fees entirely, this is the bag to beat. Few bags this light are cut this precisely to personal-item dimensions, and the expansion zipper means it adapts to stricter and looser airlines alike.
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Watch: the full video review
That is the full 8-minute review: the size, the compartments, how it packs, and whether it actually works as a personal item. Everything below is the written version with the specs and the airline math.
What “personal item” actually means
Airlines sell you the seat, and then they sell you everything else. On the cheapest fares, the only bag you get for free is a “personal item”: the bag that fits under the seat in front of you. No overhead bin, no checked bag, no extra fee.
The catch is that every airline defines the personal item slightly differently. The numbers that matter most for Canadian travellers, as of September 2026:
- Air Canada: 43 x 16 x 33 cm (17 x 6 x 13 in)
- WestJet: 41 x 15 x 33 cm (16 x 6 x 13 in)
The Bellanca’s maximum size of 40 x 30 x 15 cm sits inside both of those limits, which is the whole point. CabinFly also lists it as fitting British Airways, Air France, KLM, SAS, Finnair, Turkish Airlines, TAP, Iberia, and others at the expanded size, and Lufthansa, Austrian, Brussels Airlines, and Swiss at the compressed 40 x 30 x 10 cm size.
One warning: ultra-low-cost carriers with the strictest sizers (think Ryanair’s 40 x 20 x 25 cm free bag) are a different game. CabinFly makes a separate Ryanair-specific Bellanca variant at 40 x 20 x 25 cm with 20 litres. Do not buy the 40 x 30 x 15 cm version for Ryanair and hope for the best.
Bellanca specs and features
The numbers, straight from CabinFly:
- Size: 40 x 30 x 10 cm compressed, expands to 40 x 30 x 15 cm
- Capacity: 18 litres
- Weight: 580 grams (1.28 lbs)
- Material: 600D polyester, rain-resistant
- Colours: black, khaki, beige, blue, and others depending on the variant
The layout is simple and well thought out:
- Main compartment: the big space, for clothes, shoes, and toiletries. This is where the 18 litres live.
- Second compartment: a flatter section that fits a 15-inch laptop, plus a tablet, documents, and chargers. Your electronics stay separate from your socks, which matters at security.
- Back pocket: a slim pocket against your back for the stuff you cannot afford to lose: passport, ID, bank cards, cash, keys. It sits flat against your body, which is the right place for valuables.
- Front pocket: quick-access pocket for boarding passes, headphones, lip balm, hand cream, and a power bank.
- Side mesh pocket: fits a water bottle or flask up to 600 ml.
The expansion is the clever part. Compressed at 10 cm deep, it is slim enough for the strictest legacy carriers. Unzip the expansion and you get 15 cm of depth and the full 18 litres when your airline allows it. The shell is 600D polyester: water-resistant and durable, with the zippers as the part to test. Load the bag and work every zipper before you trust it as your only bag.
How it packs: what 18 litres actually holds
Eighteen litres is more than it sounds, but less than you hope. Realistic packing for the Bellanca:
- 2 to 3 days of clothes if you pack light (think one extra outfit, layers, and underwear/socks)
- A 15-inch laptop plus charger in the electronics compartment
- Toiletries bag, travel documents, and a book or tablet
- Water bottle in the side pocket, snacks and power bank in the front pocket
What it will not do: a full week of clothes, bulky winter layers, or a pair of shoes plus everything else. This is a weekend-trip bag, a business overnighter, or the “second bag” paired with a carry-on when your fare includes one.
The 580-gram empty weight matters more than people think. When your whole allowance is one small bag, every gram the bag itself weighs is a gram you cannot pack. At just over half a kilo, the Bellanca barely registers. It handles a weekend trip or a business overnighter (clothes, toiletries, and a 15-inch laptop) if you pack flat and roll tight. Just respect the 18-litre ceiling.
Personal item vs small carry-on
People mix these up, so here is the clean distinction:
- Personal item: goes under the seat, free on every fare including basic economy. This is the Bellanca’s job.
- Carry-on: goes in the overhead bin, bigger (typically around 55 x 40 x 20 cm), and costs extra on basic and low-cost fares.
The Bellanca is deliberately not a carry-on. It is the bag for the traveller who refuses to pay the baggage fee: one bag, under the seat, walk straight past the check-in counter. If your fare includes a carry-on anyway, the Bellanca still works as the under-seat companion while a bigger bag takes the bin.
Compared to a generic small backpack, the Bellanca’s advantage is precision. A random 20-litre daypack might be 45 cm tall and technically over the limit. The Bellanca was measured against the actual airline sizers, and the compression zipper gives you a margin of safety for the strictest gates.
Who it is for
Budget-fare flyers: If you book basic economy on Air Canada or WestJet, or fly European low-cost carriers, this bag pays for itself the first time you skip a baggage fee. That is the core buyer.
One-bag weekend travellers: Two to three days, light packing, no checked bag. The Bellanca plus a packing cube is a complete system.
Business overnighters: Laptop in the electronics compartment, one change of clothes, toiletries. In and out without the baggage carousel.
Who should skip it: If you always check a bag anyway, you do not need a precision-sized personal item. If you need a full carry-on’s worth of space, get a carry-on. And if Ryanair is your airline, get the Ryanair-specific 40 x 20 x 25 cm variant, not this one.
It is for the budget-airline traveller who refuses to pay for a carry-on: weekend trips, personal-item-only packing, and anyone who wants a bag that folds flat into a drawer when it is empty.
FAQ
What are the CabinFly Bellanca dimensions?
40 x 30 x 10 cm compressed, expanding to 40 x 30 x 15 cm (16 x 12 x 6 inches). Capacity is 18 litres and it weighs 580 grams.
Does the Bellanca fit Air Canada’s personal item size?
Yes. Air Canada’s personal item limit is 43 x 16 x 33 cm, and the Bellanca maxes out at 40 x 30 x 15 cm, so it fits with room to spare, as of September 2026.
Does it fit WestJet’s personal item size?
Yes. WestJet allows 41 x 15 x 33 cm, and the Bellanca fits inside that at full expansion.
Is the Bellanca good for Ryanair?
Not this version. Ryanair’s free bag is 40 x 20 x 25 cm, a different shape. CabinFly makes a separate Ryanair-specific Bellanca variant at those dimensions with 20 litres of capacity. Buy the right variant for your airline.
How much can you fit in 18 litres?
About 2 to 3 days of light-packed clothes, a 15-inch laptop, toiletries, documents, and travel accessories. It is a weekend or overnighter bag, not a week-long pack.
Is the Bellanca water resistant?
The 600D polyester fabric is rain-resistant and easy to wipe clean, per CabinFly. It will handle rain on the way to the terminal; it is not a dry bag, so do not submerge it.
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