Messenger-Bag Pro

Ortlieb Messenger-Bag Pro is a 39L, 1.95kg4.3lb travel backpack measuring 50×39×15.5cm19.5×15.5×6in.It fits the carry-on size limit of 18 of 36 major airlines and the personal-item limit of 0 of 26. Under the seat, its 50cm19.7in side is over the 40cm15.7in limit at 12 of the 26 airlines it misses. Specs from us.ortlieb.com, checked October 2026.

Volume: 39Lfixed size
Weight: 1.95kg4.3lb4.3lb1.95kg
Carry-on: 18/36airlines fit it
Personal item: 0/26under-seat limits

Dimensions: 50×39×15.5cm19.5×15.5×6in 19.5×15.5×6in50×39×15.5cm
Price: $225 as of October 2026
Laptop: sleeve, size not published
Opening: Roll-top, roll closure
Warranty: 5 years Covers material and workmanship defects, not normal wear, misuse or user-caused damage.
Compartments: n/a
Bottle pockets: n/a

Organizer
Water-resistant
Hip belt
Sternum strap
Bike-ready

Material: PVC-coated polyester (pd620), PVC-coated Cordura (ps620c)

Marketed to bicycle couriers; transparent A3 poster pocket on the back
Organizer with laptop padding; reflective strips on straps
IP64 waterproof
Price is the default (first listed) colour variant

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

Does the Ortlieb Messenger-Bag Pro fit airline carry-on limits?

Draw against

Cabin bag, tight (1cm spare)Cabin bag, tight (0.4in spare) 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	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	5.1kg to pack (of 7kg)11.2lb to pack (of 15.4lb)
Air CanadaCabin bag not on every fare	Tight fit (1cm 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	10.1kg to pack (of 12kg shared with personal item)22.3lb to pack (of 26.5lb shared with personal item)
Air India	Tight fit (1cm spare)Tight fit (0.4in spare)	No published limit	5.1kg to pack (of 7kg)11.2lb to pack (of 15.4lb)
AirAsia	Too bigToo big	Too bigToo big	5.1kg to pack (of 7kg shared with personal item)11.2lb to pack (of 15.4lb shared with personal item)
Alaska Airlines	Too bigToo big	No published limit	No published limitNo published limit
Allegiant AirCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
American Airlines	Too bigToo big	Too bigToo big	No published limitNo published limit
ANA (All Nippon Airways)	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	8.1kg to pack (of 10kg shared with personal item)17.9lb to pack (of 22lb shared with personal item)
AviancaCabin bag not on every fare	Too bigToo big	No published limit	8.1kg to pack (of 10kg)17.9lb to pack (of 22lb)
British Airways	FitsFits	Too bigToo big	No published limitNo published limit
Cebu Pacific	Too bigToo big	Too bigToo big	8.1kg to pack (of 10kg shared with personal item)17.9lb to pack (of 22lb shared with personal item)
Delta Air Lines	Too bigToo big	No published limit	No published limitNo published limit
easyJetCabin bag not on every fare	FitsFits	Too bigToo big	13.1kg to pack (of 15kg)28.9lb to pack (of 33.1lb)
Emirates	Too bigToo big	No published limit	5.1kg to pack (of 7kg)11.2lb to pack (of 15.4lb)
Frontier AirlinesCabin bag not on every fare	FitsFits	Too bigToo big	14kg to pack (of 15.9kg)30.9lb to pack (of 35.1lb)
Gol Linhas Aereas	Too bigToo big	No published limit	8.1kg to pack (of 10kg)17.9lb to pack (of 22lb)
IndiGo	Too bigToo big	No published limit	5.1kg to pack (of 7kg)11.2lb to pack (of 15.4lb)
JetBlue Airways	Too bigToo big	Too bigToo big	No published limitNo published limit
KLMCabin bag not on every fare	Too bigToo big	Too bigToo big	10.1kg to pack (of 12kg shared with personal item)22.3lb to pack (of 26.5lb shared with personal item)
LATAM Airlines	Too bigToo big	Too bigToo big	10.1kg to pack (of 12kg)22.3lb to pack (of 26.5lb)
LufthansaCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	6.1kg to pack (of 8kg)13.4lb to pack (of 17.6lb)
Norwegian Air ShuttleCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	8.1kg to pack (of 10kg shared with personal item)17.9lb to pack (of 22lb shared with personal item)
Qantas	Too bigToo big	No published limit	5.1kg to pack (of 7kg shared with personal item)11.2lb to pack (of 15.4lb shared with personal item)
Qatar Airways	Too bigToo big	No published limit	5.1kg to pack (of 7kg)11.2lb to pack (of 15.4lb)
RyanairCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	8.1kg to pack (of 10kg)17.9lb to pack (of 22lb)
SAS	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	6.1kg to pack (of 8kg)13.4lb to pack (of 17.6lb)
Singapore Airlines	FitsFits	Too bigToo big	5.1kg to pack (of 7kg)11.2lb to pack (of 15.4lb)
Southwest Airlines	FitsFits	No published limit	No published limitNo published limit
Turkish Airlines	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	6.1kg to pack (of 8kg)13.4lb 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	Too bigToo big	Too bigToo big	5.1kg to pack (of 7kg shared with personal item)11.2lb to pack (of 15.4lb shared with personal item)
VolarisCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	8.1kg to pack (of 10kg)17.9lb to pack (of 22lb)
VuelingCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	8.1kg to pack (of 10kg)17.9lb to pack (of 22lb)
WestJetCabin bag not on every fare	Too bigToo big	Too bigToo big	No published limitNo published limit
Wizz AirCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	8.1kg to pack (of 10kg)17.9lb 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 1.95kg4.3lb. Limits and sources. Own a different bag? Check it against every airline.