RikSak

Gossamer Gear RikSak is a 20L, 0.14kg0.3lb travel backpack measuring 53.3×32.4×8.9cm21×13×3.5in. It fits the carry-on size limit of 35 of 36 major airlines and the personal-item limit of 0 of 26. Under the seat, its 53.3cm21in side is over the 40cm15.7in limit at 12 of the 26 airlines it misses. Specs from gossamergear.com, checked September 2026.

Volume: 20Lfixed size
Weight: 0.14kg0.3lb0.3lb0.14kg
Carry-on: 35/36airlines fit it
Personal item: 0/26under-seat limits

Dimensions: 53.3×32.4×8.9cm21×13×3.5in 21×13×3.5in53.3×32.4×8.9cm
Price: $45 as of September 2026
Laptop: no laptop sleeve
Opening: Top-loading, Easy cinch top with pull tab
Warranty: 1 year Manufacturing defects for the US purchaser, not material or fabric failure from durability limits.
Compartments: 1
Bottle pockets: n/a

Price history

$45 at every weekly check since Oct 5, 2026 (3 checks).

Checked weekly on the brand's US store.

Material: 70D recycled Robic nylon, nylon/span stretch mesh, polyester airmesh straps, PFAS free

Packable daypack, stuffs into its interior mesh pocket (15.2 x 17.8 x 3.8 cm)
Height to the casing seam; 45.7 cm to the strap exit
Not Fast Belt compatible

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

Does the Gossamer Gear RikSak fit airline carry-on limits?

Draw against

Cabin bag, tight (1.7cm spare)Cabin bag, tight (0.7in 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 (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	6.9kg to pack (of 7kg)15.2lb to pack (of 15.4lb)
Air CanadaCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	No published limitNo published limit
Air FranceCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	11.9kg to pack (of 12kg shared with personal item)26.2lb to pack (of 26.5lb shared with personal item)
Air India	Tight fit (1.7cm spare)Tight fit (0.7in spare)	No published limit	6.9kg to pack (of 7kg)15.2lb to pack (of 15.4lb)
AirAsia	FitsFits	Too bigToo big	6.9kg to pack (of 7kg shared with personal item)15.2lb 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	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	No published limitNo published limit
American Airlines	FitsFits	Too bigToo big	No published limitNo published limit
ANA (All Nippon Airways)	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	9.9kg to pack (of 10kg shared with personal item)21.8lb to pack (of 22lb shared with personal item)
AviancaCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	No published limit	9.9kg to pack (of 10kg)21.8lb to pack (of 22lb)
British Airways	FitsFits	Too bigToo big	No published limitNo published limit
Cebu Pacific	FitsFits	Too bigToo big	9.9kg to pack (of 10kg shared with personal item)21.8lb 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	Too bigToo big	14.9kg to pack (of 15kg)32.8lb to pack (of 33.1lb)
Emirates	Tight fit (1.7cm spare)Tight fit (0.7in spare)	No published limit	6.9kg to pack (of 7kg)15.2lb to pack (of 15.4lb)
Frontier AirlinesCabin bag not on every fare	FitsFits	Too bigToo big	15.8kg to pack (of 15.9kg)34.8lb to pack (of 35.1lb)
Gol Linhas Aereas	Tight fit (1.7cm spare)Tight fit (0.7in spare)	No published limit	9.9kg to pack (of 10kg)21.8lb to pack (of 22lb)
IndiGo	Tight fit (1.7cm spare)Tight fit (0.7in spare)	No published limit	6.9kg to pack (of 7kg)15.2lb to pack (of 15.4lb)
JetBlue Airways	FitsFits	Too bigToo big	No published limitNo published limit
KLMCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	11.9kg to pack (of 12kg shared with personal item)26.2lb to pack (of 26.5lb shared with personal item)
LATAM Airlines	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	11.9kg to pack (of 12kg)26.2lb to pack (of 26.5lb)
LufthansaCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	7.9kg to pack (of 8kg)17.4lb to pack (of 17.6lb)
Norwegian Air ShuttleCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	9.9kg to pack (of 10kg shared with personal item)21.8lb to pack (of 22lb shared with personal item)
Qantas	FitsFits	No published limit	6.9kg to pack (of 7kg shared with personal item)15.2lb to pack (of 15.4lb shared with personal item)
Qatar Airways	Too bigToo big	No published limit	6.9kg to pack (of 7kg)15.2lb to pack (of 15.4lb)
RyanairCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	9.9kg to pack (of 10kg)21.8lb to pack (of 22lb)
SAS	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	7.9kg to pack (of 8kg)17.4lb to pack (of 17.6lb)
Singapore Airlines	FitsFits	Too bigToo big	6.9kg to pack (of 7kg)15.2lb to pack (of 15.4lb)
Southwest Airlines	FitsFits	No published limit	No published limitNo published limit
Turkish Airlines	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	7.9kg to pack (of 8kg)17.4lb 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	6.9kg to pack (of 7kg shared with personal item)15.2lb to pack (of 15.4lb shared with personal item)
VolarisCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	9.9kg to pack (of 10kg)21.8lb to pack (of 22lb)
VuelingCabin bag not on every fare	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	9.9kg to pack (of 10kg)21.8lb 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	Tight fit (1.7cm spare)Tight fit (0.7in spare)	Too bigToo big	9.9kg to pack (of 10kg)21.8lb 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 0.14kg0.3lb. Limits and sources. Own a different bag? Check it against every airline.