Citta Backpack 18L

Fyro Citta Backpack 18L is a 18L, 1.04kg2.3lb travel backpack measuring 40×28×17cm15.5×11×6.5in. It fits the carry-on size limit of 36 of 36 major airlines and the personal-item limit of 13 of 26. Under the seat, its 17cm6.7in side is over the 15cm5.9in limit at 6 of the 13 airlines it misses. Specs from fyro.co, checked October 2026.

Volume: 18Lfixed size
Weight: 1.04kg2.3lb2.3lb1.04kg
Carry-on: 36/36airlines fit it
Personal item: 13/26under-seat limits

Dimensions: 40×28×17cm15.5×11×6.5in 15.5×11×6.5in40×28×17cm
Price: $239 as of October 2026
Laptop: up to 14"
Opening: main compartment zip, top quick access pocket, top tech pocket
Warranty: Lifetime Covers manufacturing defects for the original owner with proof of purchase.
Compartments: n/a
Bottle pockets: n/a

Organizer
Water-resistant
Hip belt (insert sold separately)

Material: CarbonLite 330D Kodra nylon with polycarbonate coating; 100D honeycomb ripstop interior; YKK zippers, Woojin hardware

Pre-order only (delivery Jan 2027) at $215, 10% off the $239 MSRP
Padded laptop compartment with false bottom, up to 14 inch
Personal item size per Fyro
Self-standing; hip belt sold separately

Last checked: 2026-10. Prices and specs may have changed.

Does the Fyro Citta Backpack 18L fit airline carry-on limits?

Draw against

Fits under the seatFits under the seat on Ryanair. cabin bag 55×40×20cm21.5×15.5×8in · under the seat 40×30×20cm15.5×12×8in. Bag in cminches, turned to fit.

Flag as a tight fit undercm spare

Airline	Carry-on	Personal item	Cabin-bag weight
Air Arabia	FitsFits	Too bigToo big	6kg to pack (of 7kg)13.2lb to pack (of 15.4lb)
Air CanadaCabin bag not on every fare	FitsFits	Too bigToo big	No published limitNo published limit
Air FranceCabin bag not on every fare	FitsFits	Too bigToo big	11kg to pack (of 12kg shared with personal item)24.3lb to pack (of 26.5lb shared with personal item)
Air India	FitsFits	No published limit	6kg to pack (of 7kg)13.2lb to pack (of 15.4lb)
AirAsia	FitsFits	Too bigToo big	6kg to pack (of 7kg shared with personal item)13.2lb to pack (of 15.4lb shared with personal item)
Alaska Airlines	FitsFits	No published limit	No published limitNo published limit
Allegiant AirCabin bag not on every fare	FitsFits	FitsFits	No published limitNo published limit
American Airlines	FitsFits	FitsFits	No published limitNo published limit
ANA (All Nippon Airways)	FitsFits	Tight fit (no spare)Tight fit (no spare)	9kg to pack (of 10kg shared with personal item)19.8lb to pack (of 22lb shared with personal item)
AviancaCabin bag not on every fare	FitsFits	No published limit	9kg to pack (of 10kg)19.8lb to pack (of 22lb)
British Airways	FitsFits	FitsFits	No published limitNo published limit
Cebu Pacific	FitsFits	Too bigToo big	9kg to pack (of 10kg shared with personal item)19.8lb to pack (of 22lb shared with personal item)
Delta Air Lines	FitsFits	No published limit	No published limitNo published limit
easyJetCabin bag not on every fare	FitsFits	FitsFits	14kg to pack (of 15kg)30.9lb to pack (of 33.1lb)
Emirates	FitsFits	No published limit	6kg to pack (of 7kg)13.2lb to pack (of 15.4lb)
Frontier AirlinesCabin bag not on every fare	FitsFits	FitsFits	14.9kg to pack (of 15.9kg)32.8lb to pack (of 35.1lb)
Gol Linhas Aereas	FitsFits	No published limit	9kg to pack (of 10kg)19.8lb to pack (of 22lb)
IndiGo	FitsFits	No published limit	6kg to pack (of 7kg)13.2lb to pack (of 15.4lb)
JetBlue Airways	FitsFits	FitsFits	No published limitNo published limit
KLMCabin bag not on every fare	FitsFits	Too bigToo big	11kg to pack (of 12kg shared with personal item)24.3lb to pack (of 26.5lb shared with personal item)
LATAM Airlines	FitsFits	FitsFits	11kg to pack (of 12kg)24.3lb to pack (of 26.5lb)
LufthansaCabin bag not on every fare	FitsFits	Too bigToo big	7kg to pack (of 8kg)15.4lb to pack (of 17.6lb)
Norwegian Air ShuttleCabin bag not on every fare	FitsFits	Tight fit (no spare)Tight fit (no spare)	9kg to pack (of 10kg shared with personal item)19.8lb to pack (of 22lb shared with personal item)
Qantas	FitsFits	No published limit	6kg to pack (of 7kg shared with personal item)13.2lb to pack (of 15.4lb shared with personal item)
Qatar Airways	FitsFits	No published limit	6kg to pack (of 7kg)13.2lb to pack (of 15.4lb)
RyanairCabin bag not on every fare	FitsFits	Tight fit (no spare)Tight fit (no spare)	9kg to pack (of 10kg)19.8lb to pack (of 22lb)
SAS	FitsFits	Too bigToo big	7kg to pack (of 8kg)15.4lb to pack (of 17.6lb)
Singapore Airlines	FitsFits	Too bigToo big	6kg to pack (of 7kg)13.2lb to pack (of 15.4lb)
Southwest Airlines	FitsFits	No published limit	No published limitNo published limit
Turkish Airlines	FitsFits	Too bigToo big	7kg to pack (of 8kg)15.4lb to pack (of 17.6lb)
United AirlinesCabin bag not on every fare	FitsFits	Too bigToo big	No published limitNo published limit
Vietjet Air	FitsFits	Too bigToo big	6kg to pack (of 7kg shared with personal item)13.2lb to pack (of 15.4lb shared with personal item)
VolarisCabin bag not on every fare	FitsFits	FitsFits	9kg to pack (of 10kg)19.8lb to pack (of 22lb)
VuelingCabin bag not on every fare	FitsFits	Tight fit (no spare)Tight fit (no spare)	9kg to pack (of 10kg)19.8lb to pack (of 22lb)
WestJetCabin bag not on every fare	FitsFits	Too bigToo big	No published limitNo published limit
Wizz AirCabin bag not on every fare	FitsFits	Tight fit (no spare)Tight fit (no spare)	9kg to pack (of 10kg)19.8lb to pack (of 22lb)

Compared in any orientation against each airline's published size limit. A tight fit has under 2cm to spare, so a packed soft bag may not pass a sizer. Set it to 0 to turn the warning off. Weight is what the airline allows in the cabin minus this bag's empty 1.04kg2.3lb. Limits and sources. Own a different bag? Check it against every airline.