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No-Guess Travel.
Personal item size guides. Carry-on requirements. Packing tips for every trip. The answers are already here — so you don't have to guess. Just go.
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We measured the seats so you don't have to. Here's what actually fits under yours.
The Best Personal Item Travel Bags That Fit Under Your Seat
Built to Fit Under the Seat — and Into Every Trip Whether you’re hopping on a quick weekend flight or boarding the first leg of a month-long adventure, the right...
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Personal item bags. Under-the-seat bags. Overhead-approved carry-ons.
Every Sherpani bag is built to fit — so you never have to guess, measure, or gate-check again.
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Under-the-seat, overhead, and everything in between — everything you wanted to know about personal item sizing and carry-on rules.
What size bag fits under an airplane seat?
Most airlines require under-seat bags to be around 17-18" L x 12-14" W x 8" D, though exact dimensions vary by carrier. Sherpani's personal item bags are designed to fit within the most common size restrictions across major US and international airlines.
What's the difference between a personal item and a carry-on?
A personal item (like a backpack, tote, or purse) fits under the seat in front of you and is typically included free on every fare, including basic economy. A carry-on is larger and goes in the overhead bin — some airlines charge extra for it on basic fares.
Can I bring a personal item and a carry-on on the same flight?
Most airlines allow one personal item plus one carry-on bag, but basic economy fares on some carriers (like American or Delta) may restrict you to a personal item only. Always check your specific fare class before flying.
Should I choose a backpack or a tote as my personal item?
It depends on how you travel. Backpacks distribute weight better for walking through airports and are easier to stow under the seat consistently. Totes offer more flexibility for quick access but can be bulkier to compress under tighter seat dimensions.
What should I pack in my personal item vs. my checked bag?
Keep travel essentials in your personal item — medications, chargers, a change of clothes, valuables, and anything you'll need in-flight or if your checked bag is delayed. Save bulkier items and toiletries over the TSA liquid limit for your checked bag.
