Monos sells direct and backs every case with a lifetime warranty, undercutting legacy luggage brands on price for a similar shell. We tested whether that trade holds up once the suitcase actually takes a beating.
Monos built a real case for skipping the legacy luggage markup: the Carry-On Pro's 22x14x9-inch shell fits most airline sizers, the front laptop pocket is genuinely useful at security, and the direct-to-consumer price undercuts comparable hardside cases from brands with a century of retail overhead. The lifetime warranty sounds like the deciding factor until you read what other owners say about using it. Recurring reports of shell cracking after two to three years, paired with slow, automated-feeling claims responses, mean the warranty is a promise this brand hasn't consistently kept. Buy it for the price and the design, not for a warranty you might need to fight for.
Best for Budget-conscious flyers who want a well-designed hardside carry-on and will document damage for warranty claims.
Legacy luggage brands charge for a name on the shell as much as for the shell itself. Monos built its entire pitch around that gap, selling direct-to-consumer and backing every case with a warranty for life. The Carry-On Pro is the flagship test of whether that model actually works, or whether it's just a cheaper way to end up with the same disappointment.
At 22 x 14 x 9 inches, the Carry-On Pro fits the sizers most US and international carriers use, and its 36-liter capacity is competitive for a case in that footprint. The polycarbonate hardshell rides on 360-degree spinner wheels, and the standout practical feature is a dedicated front pocket sized for a 16-inch laptop, letting a traveler pull a laptop out at security without unzipping the main compartment on the ground.
None of that is unique to Monos. What is unique is the price: legacy brands selling a comparable hardside case with similar features routinely charge more, and the gap is largely retail markup rather than materials, since Monos skips traditional stores and department markups by selling straight from its own site.
Monos doesn't lean on a design story or a celebrity founder. The entire brand case rests on one promise: buy once, and the wheels, locks, and handle are covered for as long as you own the bag.
That's a genuinely different offer than most luggage makers provide, and it's paired with optional paid upgrades, Essential and Pro Coverage, that extend protection to airline mishandling and structural damage for a one-time fee. On paper, it's one of the stronger warranty structures in direct-to-consumer luggage.
A warranty is only as good as what happens when you actually use it, and this is where the Carry-On Pro's record gets uneven. Aggregated owner reviews describe a recurring pattern: shells cracking after two to three years of what owners call moderate use, not the abuse a warranty is meant to exclude. More troubling than the cracks themselves is what reviewers say happens next: some describe submitting photos and documentation only to receive automated responses rather than a resolved claim.
Upgraded Points' longer-term test doesn't report structural failure in their unit, which suggests the cracking issue isn't universal, but the volume of similar complaints across multiple review platforms is high enough that it shouldn't be dismissed as a handful of unlucky buyers. A lifetime warranty that's slow or inconsistent to honor is worth less than the marketing implies, even when the underlying coverage terms look generous on paper.
The Carry-On Pro earns its price on day one: it's well designed, sized correctly for the sizers that matter, and genuinely cheaper than comparable legacy hardside cases. The case for caution isn't about the bag failing on your first trip, it's about what happens two or three years in in case the shell does crack. Photograph the case in good condition when it arrives, keep that documentation, and treat the warranty claims process as something you may need to push on rather than something that resolves itself automatically. That's a reasonable ask for a bag at this price, but it's a real caveat, not a footnote.
Away's flagship carry-on, reviewed elsewhere on this site, sits at a similar footprint and a noticeably higher price, and the comparison is instructive: Monos isn't winning on features so much as on what it doesn't charge you for. No flagship retail stores, no celebrity marketing budget baked into the sticker price, just a case built to a similar spec sold closer to cost. That model only works, though, if the company backs its warranty the way it says it will, and the uneven claims record is the one place the direct-to-consumer pitch hasn't fully delivered yet.
For a traveler buying their first hardside carry-on, or replacing a cracked wheel from a cheaper case, the Carry-On Pro is still a sound purchase at this price point. Just don't buy it purely on the strength of the warranty page. Buy it for the shell, the laptop pocket, and the price, and treat the lifetime coverage as a bonus you may have to work for rather than a guarantee.
Best for occasional bag-checkers who value lifetime repair coverage over shaving every ounce.
$275
Best for frequent flyers who want a lifetime warranty on the shell and don't mind cosmetic scuffs
From $925