All Day Carry V2 Plus 45L

Six Moon Designs All Day Carry V2 Plus 45L is a 45L, 1.37kg3lb travel backpack measuring 55×30×21cm21.5×12×8.5in. It fits the carry-on size limit of 31 of 36 major airlines and the personal-item limit of 0 of 26. Under the seat, its 21cm8.3in side is over the 20cm7.9in limit at 15 of the 26 airlines it misses. Specs from sixmoondesigns.com, checked September 2026.

Volume: 45Lfixed size
Weight: 1.37kg3lb3lb1.37kg
Carry-on: 31/36airlines fit it
Personal item: 0/26under-seat limits

Dimensions: 55×30×21cm21.5×12×8.5in 21.5×12×8.5in55×30×21cm
Price: $315 as of September 2026
Laptop: up to 16"
Opening: Clamshell, Clamshell main compartment
Warranty: No fixed term Defects in materials and workmanship for the original owner, not rips, tears, accidents or normal wear.
Torso length: 35 to 55cm (14 to 21.5in)
Sizes: Small, Large
Compartments: 1
Bottle pockets: 2

Price history

$300 at every weekly check since Oct 5, 2026 (3 checks).

Checked weekly on the brand's US store.

Organizer
Frame sheet
Water-resistant
Hip belt (removable)
Load lifters
Luggage pass-through

Material: Robic nylon 200D (price shown); also VX21 X-Pac or Challenge ULTRA 200X; Challenge RBC200 liner, UltraStretch pockets, water-resistant zippers

Front mesh pocket 8L, front top pocket 3L and front admin pocket 5L on top of the 40L main compartment
Six Moon says it fits international overhead bin limits; stowable shoulder straps and luggage handle pass-through
Weight with shoulder straps and medium hip belt (Robic); price for Robic, VX21 and ULTRA versions cost more

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Last checked: 2026-09. Prices and specs may have changed.

Does the Six Moon Designs All Day Carry V2 Plus 45L 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	5.6kg to pack (of 7kg)12.3lb to pack (of 15.4lb)
Air CanadaCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	No published limitNo published limit
Air FranceCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	10.6kg to pack (of 12kg shared with personal item)23.4lb to pack (of 26.5lb shared with personal item)
Air India	Too bigToo big	No published limit	5.6kg to pack (of 7kg)12.3lb to pack (of 15.4lb)
AirAsia	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	5.6kg to pack (of 7kg shared with personal item)12.3lb to pack (of 15.4lb shared with personal item)
Alaska Airlines	Tight fit (1cm spare)Tight fit (0.4in spare)	No published limit	No published limitNo published limit
Allegiant AirCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	No published limitNo published limit
American Airlines	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
ANA (All Nippon Airways)	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	8.6kg to pack (of 10kg shared with personal item)19lb to pack (of 22lb shared with personal item)
AviancaCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	No published limit	8.6kg to pack (of 10kg)19lb to pack (of 22lb)
British Airways	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
Cebu Pacific	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	8.6kg to pack (of 10kg shared with personal item)19lb to pack (of 22lb shared with personal item)
Delta Air Lines	Tight fit (1cm spare)Tight fit (0.4in spare)	No published limit	No published limitNo published limit
easyJetCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	13.6kg to pack (of 15kg)30lb to pack (of 33.1lb)
Emirates	Tight fit (no spare)Tight fit (no spare)	No published limit	5.6kg to pack (of 7kg)12.3lb to pack (of 15.4lb)
Frontier AirlinesCabin bag not on every fare	FitsFits	Too bigToo big	14.5kg to pack (of 15.9kg)32lb to pack (of 35.1lb)
Gol Linhas Aereas	Tight fit (no spare)Tight fit (no spare)	No published limit	8.6kg to pack (of 10kg)19lb to pack (of 22lb)
IndiGo	Tight fit (no spare)Tight fit (no spare)	No published limit	5.6kg to pack (of 7kg)12.3lb to pack (of 15.4lb)
JetBlue Airways	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
KLMCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	10.6kg to pack (of 12kg shared with personal item)23.4lb to pack (of 26.5lb shared with personal item)
LATAM Airlines	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	10.6kg to pack (of 12kg)23.4lb to pack (of 26.5lb)
LufthansaCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	6.6kg to pack (of 8kg)14.6lb to pack (of 17.6lb)
Norwegian Air ShuttleCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	8.6kg to pack (of 10kg shared with personal item)19lb to pack (of 22lb shared with personal item)
Qantas	Tight fit (1cm spare)Tight fit (0.4in spare)	No published limit	5.6kg to pack (of 7kg shared with personal item)12.3lb to pack (of 15.4lb shared with personal item)
Qatar Airways	Too bigToo big	No published limit	5.6kg to pack (of 7kg)12.3lb to pack (of 15.4lb)
RyanairCabin bag not on every fare	Too bigToo big	Too bigToo big	8.6kg to pack (of 10kg)19lb to pack (of 22lb)
SAS	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	6.6kg to pack (of 8kg)14.6lb to pack (of 17.6lb)
Singapore Airlines	FitsFits	Too bigToo big	5.6kg to pack (of 7kg)12.3lb to pack (of 15.4lb)
Southwest Airlines	FitsFits	No published limit	No published limitNo published limit
Turkish Airlines	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	6.6kg to pack (of 8kg)14.6lb to pack (of 17.6lb)
United AirlinesCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
Vietjet Air	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	5.6kg to pack (of 7kg shared with personal item)12.3lb to pack (of 15.4lb shared with personal item)
VolarisCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	8.6kg to pack (of 10kg)19lb to pack (of 22lb)
VuelingCabin bag not on every fare	Too bigToo big	Too bigToo big	8.6kg to pack (of 10kg)19lb to pack (of 22lb)
WestJetCabin bag not on every fare	Tight fit (1cm spare)Tight fit (0.4in spare)	Too bigToo big	No published limitNo published limit
Wizz AirCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	8.6kg to pack (of 10kg)19lb 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 1.37kg3lb. Limits and sources. Own a different bag? Check it against every airline.