Bag Fit Guides
Does the Briggs & Riley Underseat Duffle fit on Alaska?
Short answer: no, it doesn't fit. The Briggs & Riley Underseat Duffle is 1.5" over Alaska's 22×14×9" carry-on limit, so it won't clear the sizer.
You’re eyeing the Briggs & Riley Underseat Duffle for your Alaska flight because you want to travel light and organized. Good call, the bag has a solid reputation, but let’s see if it’ll actually fit.
Short answer: no, it doesn't fit. The Briggs & Riley Underseat Duffle is 1.5" over Alaska's 22×14×9" carry-on limit, so it won't clear the sizer.
The Briggs & Riley Underseat Duffle does NOT fit on Alaska. It’s over by 1.5 inches on the shortest side, so you’ll be gate-checking this one (and paying the fee).
How the Briggs & Riley Underseat Duffle measures up against Alaska
| Dimension | This bag | Limit | Verdict |
|---|---|---|---|
| Longest side | 16.5" | 22" | 5.5" to spare |
| Middle side | 11.5" | 14" | 2.5" to spare |
| Shortest side | 10.5" | 9" | Over by 1.5" |
What counts toward the size
Airlines measure your bag at its largest points, and that includes the wheels, handles, and any bulging front pockets. The numbers above (11.5×16.5×10.5") are the bag's external dimensions, so that's exactly what a gate agent's sizer sees. Don't count on squishing it or tucking in a handle to gain space, what's on the spec sheet is what gets measured.
What happens at the gate
Too big, over by 1.5 inches. This won’t pass the Alaska carry-on sizer; expect to gate-check it (and pay the fee).
What you're paying for
I get why you’re drawn to this bag. It’s got a sleek design, durable build, and plenty of clever storage features.
- The Briggs & Riley Underseat Duffle is designed to fit under most airline seats, which makes it great for quick trips or as an extra bag.
- It’s packed with smart details like compression straps, multiple pockets, and a removable toiletries pouch, ideal for keeping things organized.
- Owners rave about its durability and lifetime warranty, so if you’re looking for a long-term investment, this is a solid pick.
Better options that fit Alaska
If you’re set on a carry-on that’ll actually fit on Alaska, here are some great alternatives:
- Samsonite Voltage DLX Global Carry-On Spinner (22×14×9", $125.99). See it →
- Travelpro Maxlite® 5 Rolling Underseat Carry-On (16×13×8", $135). See it →
- Calpak Luka Mini Carry-On Luggage (16×12×8", $185). See it →
Does the Briggs & Riley Underseat Duffle fit other airlines?
You booked Alaska this time, but bags outlive itineraries. Here's how the Briggs & Riley Underseat Duffle (11.5×16.5×10.5") stacks up against other major carriers' cabin limits.
| Airline | Cabin limit | Does it fit? |
|---|---|---|
| Ryanair | 21.6×15.7×7.9" | No (over by 2.6") |
| easyJet | 22×17.7×9.8" | No (over by 0.7") |
| Wizz Air | 21.6×15.7×9.1" | No (over by 1.4") |
| British Airways | 22×17.7×9.8" | No (over by 0.7") |
| Jet2 | 22×17.7×9.8" | No (over by 0.7") |
| Lufthansa | 21.7×15.7×9.1" | No (over by 1.4") |
| American / Delta / United | 22×14×9" | No (over by 1.5") |
| Southwest | 24×16×10" | No (over by 0.5") |
Frequently asked questions
Will the Briggs & Riley Underseat Duffle fit as Alaska's free personal item?
No. At 11.5×16.5×10.5" it's a full-size carry-on, not a personal item. Personal items have to fit under the seat (much smaller, roughly 18×14×8" or less), so the Briggs & Riley Underseat Duffle travels as your cabin bag.
Does overpacking or expanding the bag change whether it fits?
It only makes it worse. The bag is already 1.5" over at its listed size, and packing light won't shrink a rigid frame. Expanding it pushes it further past the limit.
Bottom line
Sorry to be the bearer of bad news, but at least you know now and can plan accordingly. Gate-checking fees add up, so it’s worth finding a bag that fits, trust me.
Disclosure: Some links on this page are affiliate links. If you buy through them we may earn a commission at no extra cost to you. It never changes our verdict, our measurements don't care who pays us.
