As an Amazon Associate I earn from qualifying purchases. Measurements on this page come from airline sites and Amazon listings, not from a lab scale. Affiliate disclosure

Premium hardside on Amazon

Monos Carry-On Plus, Stellar White

The Monos Carry-On Plus on Amazon is about 23 × 15 × 9.5 inches and 7.4 lb. It is the larger Plus, not a 22 × 14 × 9 bag.

Monos · carry-on · Listing checked

The Monos Carry-On Plus on Amazon is a 23 × 15 × 9.5 inch, 7.4 pound hardside. The listing was down to 9 units when we checked. It is a premium spinner. It is not a strict US carry-on on its own numbers.

Check price on Amazon
Published size
23 × 15 × 9.5 in
Weight
7.38 lb in the bullet and 7.4 lb in product details.
Shell
Hardside polycarbonate spinner
Wheels
Spinner wheels
Lock
TSA-accepted lock and reverse-coil YKK zippers
Warranty
See the current Monos listing. We are not quoting a warranty term we did not read on the buy-box page.
Capacity
About 45.9 liters
Expandable
Not described as expandable in the bullets we used
Best for
Shoppers who want the larger Monos spinner Amazon actually stocks, and who are not buying it for a 22 × 14 × 9 sizer.

Bullet: 23 × 15 × 9.5 inches, 7.38 lb, about 45.9 liters. Product details: 15 × 9.5 × 23 inches, 7.4 lb. Only 9 left in stock on November 10, 2026.

Pros

Cons

Does the published size fit?

Published size of 23 × 15 × 9.5 in against airline limits checked with the sources on our size checker.
AirlineCarry-on boxPersonal itemWeight
American AirlinesOverOverNo cap
Delta Air LinesOverSize not publishedNo cap
United AirlinesOverOverNo cap
Southwest AirlinesFitsSize not publishedNo cap
JetBlueOverOverNo cap
Alaska AirlinesOverSize not publishedNo cap
Spirit AirlinesOverOverNo cap
Frontier AirlinesFitsOverFits
Allegiant AirOverOverNo cap
Air CanadaOverOverNo cap
British AirwaysOverOverNo cap
LufthansaOverOverFits
Air FranceOverOverFits
KLMOverOverFits
EmiratesOverNot a second bagFits
Qatar AirwaysOverNot a second bagFits
Singapore AirlinesOverSize not publishedFits
RyanairOverOverFits
easyJetOverOverFits

Monos sells direct. The question for this site is whether a real Monos carry-on is buyable on Amazon with a live ASIN. On November 10, 2026, the Carry-On Plus in Stellar White, ASIN B0DW9BJP4N, was live and showed nine left in stock. The bullet gives the size in one line: 23 × 15 × 9.5 inches, 7.38 pounds, about 45.9 liters, and it even says to check smaller planes. Product details say 15 × 9.5 × 23 inches and 7.4 pounds. Close enough to treat as the same box.

It is the Plus, not the smaller Monos carry-on. Plus is the international-leaning size. Twenty-three inches of height fails a 22 inch US limit. Fifteen inches of width fails 14. Nine and a half inches of depth fails 9. The bullet's phrase "fits many US airline sizers" is the kind of sentence that sends people to the wrong bin. Southwest's 24 × 16 × 10 box is a better match than American's. Smaller regional jets are a worse match, which is the one caution Monos already prints.

The construction notes that are actually on the listing are a TSA-accepted lock and reverse-coil YKK zippers. That is the premium-hardside brief: quiet zippers, a clean shell, a known brand. We are not assigning it a warranty term, because the buy-box text we captured did not state one clearly enough to quote. Check the listing before you treat warranty as a reason to pick it over Travelpro or Samsonite, which do state terms.

If you want Monos and you want the overhead bin on a US major, this ASIN is the wrong size even though it is the right brand. If you want this look and you fly airlines with a larger cabin bag, or you check the bag, the Plus is a coherent choice. Stock was thin. If the page flips to unavailable, do not substitute a random "Monos-style" suitcase with a different ASIN and assume the dimensions came along.

Questions people ask next

What size is the Monos listing?

Bullet: 23 × 15 × 9.5 inches, 7.38 lb, about 45.9 liters. Product details: 15 × 9.5 × 23 inches, 7.4 lb. Only 9 left in stock on November 10, 2026.

Who is the Monos Carry-On Plus, Stellar White for?

Shoppers who want the larger Monos spinner Amazon actually stocks, and who are not buying it for a 22 × 14 × 9 sizer.

Open the size checker · Best carry-on luggage 2026