B-2 Carbon Trunk Cabin 20

Skyborne B-2 Carbon Trunk Cabin 20 is a 45L, 3.4kg7.5lb rolling carry-on measuring 53.1×35.1×22.1cm21×14×8.5in. It fits the carry-on size limit of 23 of 36 major airlines and the personal-item limit of 0 of 26. Under the seat, its 22.1cm8.7in side is over the 20cm7.9in limit at 15 of the 26 airlines it misses. Specs from skyborne.co, checked October 2026.

Volume: 45Lfixed size
Weight: 3.4kg7.5lb7.5lb3.4kg
Carry-on: 23/36airlines fit it
Personal item: 0/26under-seat limits

Dimensions: 53.1×35.1×22.1cm21×14×8.5in 21×14×8.5in53.1×35.1×22.1cm
Price: $1295 as of October 2026
Laptop: n/a
Opening: Zipperless hard-shell trunk closed by dual TSA combination latches
Warranty: Lifetime Trunks free from defects in materials and workmanship for life under normal use; bags limited lifetime.
Compartments: n/a
Bottle pockets: n/a

Organizer

Material: 3K twill weave carbon fiber shell, aerospace-grade aluminum chassis, calf leather, silk, polyester, rubber, magnets, 300D nylon

Eight-wheel PHANTOM 360 spinner
Built-in USB-C and USB charging port
Dual leather compression straps and a wet/dry utility pouch
Lifetime warranty on materials and workmanship

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

Does the Skyborne B-2 Carbon Trunk Cabin 20 fit airline carry-on limits?

Draw against

Too bigToo big 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	Too bigToo big	Too bigToo big	3.6kg to pack (of 7kg)7.9lb to pack (of 15.4lb)
Air CanadaCabin bag not on every fare	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
Air FranceCabin bag not on every fare	Too bigToo big	Too bigToo big	8.6kg to pack (of 12kg shared with personal item)19lb to pack (of 26.5lb shared with personal item)
Air India	Too bigToo big	No published limit	3.6kg to pack (of 7kg)7.9lb to pack (of 15.4lb)
AirAsia	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	3.6kg to pack (of 7kg shared with personal item)7.9lb to pack (of 15.4lb shared with personal item)
Alaska Airlines	Tight fit (0.9cm spare)Tight fit (0.4in spare)	No published limit	No published limitNo published limit
Allegiant AirCabin bag not on every fare	Tight fit (1.9cm spare)Tight fit (0.7in spare)	Too bigToo big	No published limitNo published limit
American Airlines	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
ANA (All Nippon Airways)	Tight fit (1.9cm spare)Tight fit (0.7in spare)	Too bigToo big	6.6kg to pack (of 10kg shared with personal item)14.6lb to pack (of 22lb shared with personal item)
AviancaCabin bag not on every fare	Too bigToo big	No published limit	6.6kg to pack (of 10kg)14.6lb to pack (of 22lb)
British Airways	FitsFits	Too bigToo big	No published limitNo published limit
Cebu Pacific	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	6.6kg to pack (of 10kg shared with personal item)14.6lb to pack (of 22lb shared with personal item)
Delta Air Lines	Tight fit (0.9cm spare)Tight fit (0.4in spare)	No published limit	No published limitNo published limit
easyJetCabin bag not on every fare	FitsFits	Too bigToo big	11.6kg to pack (of 15kg)25.6lb to pack (of 33.1lb)
Emirates	Too bigToo big	No published limit	3.6kg to pack (of 7kg)7.9lb to pack (of 15.4lb)
Frontier AirlinesCabin bag not on every fare	FitsFits	Too bigToo big	12.5kg to pack (of 15.9kg)27.6lb to pack (of 35.1lb)
Gol Linhas Aereas	Too bigToo big	No published limit	6.6kg to pack (of 10kg)14.6lb to pack (of 22lb)
IndiGo	Too bigToo big	No published limit	3.6kg to pack (of 7kg)7.9lb to pack (of 15.4lb)
JetBlue Airways	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
KLMCabin bag not on every fare	Too bigToo big	Too bigToo big	8.6kg to pack (of 12kg shared with personal item)19lb to pack (of 26.5lb shared with personal item)
LATAM Airlines	Too bigToo big	Too bigToo big	8.6kg to pack (of 12kg)19lb to pack (of 26.5lb)
LufthansaCabin bag not on every fare	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	4.6kg to pack (of 8kg)10.1lb to pack (of 17.6lb)
Norwegian Air ShuttleCabin bag not on every fare	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	6.6kg to pack (of 10kg shared with personal item)14.6lb to pack (of 22lb shared with personal item)
Qantas	Tight fit (0.9cm spare)Tight fit (0.4in spare)	No published limit	3.6kg to pack (of 7kg shared with personal item)7.9lb to pack (of 15.4lb shared with personal item)
Qatar Airways	Too bigToo big	No published limit	3.6kg to pack (of 7kg)7.9lb to pack (of 15.4lb)
RyanairCabin bag not on every fare	Too bigToo big	Too bigToo big	6.6kg to pack (of 10kg)14.6lb to pack (of 22lb)
SAS	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	4.6kg to pack (of 8kg)10.1lb to pack (of 17.6lb)
Singapore Airlines	FitsFits	Too bigToo big	3.6kg to pack (of 7kg)7.9lb to pack (of 15.4lb)
Southwest Airlines	FitsFits	No published limit	No published limitNo published limit
Turkish Airlines	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	4.6kg to pack (of 8kg)10.1lb to pack (of 17.6lb)
United AirlinesCabin bag not on every fare	Too bigToo big	Too bigToo big	No published limitNo published limit
Vietjet Air	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	3.6kg to pack (of 7kg shared with personal item)7.9lb to pack (of 15.4lb shared with personal item)
VolarisCabin bag not on every fare	Tight fit (1.9cm spare)Tight fit (0.7in spare)	Too bigToo big	6.6kg to pack (of 10kg)14.6lb to pack (of 22lb)
VuelingCabin bag not on every fare	Too bigToo big	Too bigToo big	6.6kg to pack (of 10kg)14.6lb to pack (of 22lb)
WestJetCabin bag not on every fare	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
Wizz AirCabin bag not on every fare	Tight fit (0.9cm spare)Tight fit (0.4in spare)	Too bigToo big	6.6kg to pack (of 10kg)14.6lb 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 3.4kg7.5lb. Limits and sources. Own a different bag? Check it against every airline.