Last Updated: June 2026 Based on Amazon verified purchase reviews, Reddit community reports from r/onebag and r/travel, and independent testing data from Reader’s Digest and Outoria.
Airlines increased bag fees by 25% in 2025.
Frontier charges $99 at the gate. Allegiant is not far behind. And Southwest — which used to let you fly with free bags for 55 years — started charging in April 2026.
The whole point of a personal item bag is to avoid all of that. And the MATEIN Travel Laptop Backpack — Amazon’s #1 bestseller in the travel backpack category with over 85,000 verified reviews — promises to do exactly that.
But Amazon bestseller lists don’t tell you about the zipper that fails at month 14. Or the width problem on United. Or the one thing you need to know before you pack it for a Frontier flight.
We read thousands of reviews — five-star and one-star — so you don’t have to. Here’s the honest version.
Quick Verdict
Bottom line: The MATEIN Travel Laptop Backpack is genuinely one of the best value personal item bags you can buy in 2026. At $38, it beats bags costing three times more on organization and airline compliance. The main catch: United’s strict 10-inch width rule makes it a risky choice on that specific airline. For Delta, American, Southwest, Frontier, Allegiant, and JetBlue — it works.
Best for: Budget travelers, weekend trips, anyone flying on non-United routes. Skip if: You fly United Basic Economy regularly. Price: ~$38 on Amazon Rating: 4.7 / 5
MATEIN Travel Laptop Backpack – A slim, sturdy, and anti-theft backpack with a water-resistant design
What Is the MATEIN Travel Laptop Backpack?
MATEIN launched in Denver, Colorado in 2014. By 2021, they had sold over $90 million worth of backpacks on Amazon alone. Their flagship product — officially called the Mlassic Travel Laptop Backpack — is what most people mean when they say “the MATEIN backpack.”
There are several MATEIN models. This review covers the standard 15.6-inch version — the one with 85,000+ reviews and the one most people buy.
Key specs:
- Dimensions: 18″ x 12″ x 7.8″ (standard model)
- Volume: ~30L
- Laptop size: Up to 15.6 inches
- Weight: 1.3 lbs empty
- Material: Water-resistant high-density polyester
- USB port: Yes (power bank not included)
- Anti-theft pocket: Yes (hidden back panel)
- Warranty: Lifetime (repair, replace, or refund)
Dimensions vs Airline Personal Item Limits
This is the section most reviews skip. Let’s go airline by airline.
| Airline | Personal Item Limit | MATEIN (18″x12″x7.8″) | Result |
|---|---|---|---|
| Delta | 18 x 14 x 8 | Fits within all dimensions | ✅ Pass |
| American | 18 x 14 x 8 | Fits within all dimensions | ✅ Pass |
| Frontier | 18 x 14 x 8 | Fits within all dimensions | ✅ Pass |
| Allegiant | 18 x 14 x 8 | Fits within all dimensions | ✅ Pass |
| Southwest | 16.25 x 13.5 x 8 | Height 18″ exceeds 16.25″ limit | ⚠️ Borderline |
| JetBlue | 17 x 13 x 8 | 18″ height slightly over JetBlue’s 17″ | ⚠️ Borderline |
| United | 17 x 10 x 9 | Width 12″ exceeds United’s 10″ limit | ⚠️ Risk |
A testing report from MonDefetch confirmed the standard 15.6-inch MATEIN model — at 18 x 12 x 7.8 inches — slides under the seat on Frontier and United Basic Economy without extra charges.
That said, the soft construction is what makes it work in borderline situations. One reviewer who tested it on a full flight noted: “It had to go under the seat in front of me because overhead was full — and thankfully it fit with ease.”
The key word is soft. A rigid bag at these dimensions would risk failing United’s sizer. The MATEIN’s water-resistant polyester flexes. That flexibility is the reason it passes gates where technically it shouldn’t.
United-specific warning: United’s 10-inch width rule is the strictest personal item limit of any major US airline. At 12 inches wide, the MATEIN technically exceeds it. Enforcement on United is inconsistent — but on a full flight with an agent actively checking, this is a bag that could get flagged.
If you fly United regularly, consider the ECOHUB or a slimmer alternative. See our guide on the best bags specifically for United Airlines.
What’s Inside — Features Breakdown
Laptop Compartment
The laptop compartment holds up to 15.6 inches and includes a strap attached to lycra material to secure the device — though several reviewers note the strap is not adjustable, which means smaller laptops can shift inside the compartment.
For a 15-inch MacBook Pro, the fit is snug and secure. For a 13-inch laptop, there’s noticeable movement. Not a dealbreaker, but worth knowing if you have a smaller machine.
Main Compartment
One reviewer packed three pairs of jeans, four long-sleeve shirts, a sweatshirt, a toiletry bag, three pairs of hiking socks, undergarments, three camisole tops, and makeup — all in the main compartment.
That’s a full weekend worth of clothes in a $38 bag.
Front Compartment
Dedicated slots for your phone, pen, keys, wallet, glasses, and passport. The organization here is more thoughtful than most bags at this price.
Hidden Anti-Theft Pocket
The theft-resistant pocket sits against your back, allowing you to safely carry valuables through crowded streets or airports. In practice, this is where experienced travelers keep their passport and cash. Pickpockets can’t reach it while you’re wearing the bag.
USB Charging Port
External port on the side. Slide your power bank into the main compartment and you can charge your phone while the bag is on your back. Power bank is not included — a minor but worth noting omission at this price.
Side Pockets
Two mesh side pockets. One fits a standard water bottle, the other a small umbrella. Basic, but they work.
Luggage Strap
A rear strap that slides over rolling luggage handles. Makes navigating airports significantly easier if you have a checked bag. More bags in this price range skip this feature — MATEIN includes it.
What Buyers Actually Say
We separated the five-star enthusiasm from the real feedback buried in the middle and lower ratings.
What people love:
“Love, love, love this bag. I have used it on many trips and love it more every time. It has plenty of space for a long weekend and it has saved me a lot of money not having to pay for a carry-on or checked bag on budget airlines.”
One reviewer called it “a mini suitcase you wear on your back” — a description that captures the MATEIN’s main appeal. The expandable version goes from 35L to 45L, which is more than most travelers need for a four-day trip.
What people complain about (from 1 and 2-star reviews):
Zipper durability is the most common complaint. Multiple reviewers report the zippers beginning to fail between 12 and 18 months of daily use. This is not a bag for every-single-day carry to work and travel — the zippers weren’t built for that.
The laptop strap not being adjustable is a minor frustration that comes up regularly for users with 13-inch laptops.
A few reviewers note the key ring attachment requires using the included ring to attach keys. If you have only one set of keys, this design works fine. Multiple key sets become annoying to manage.
Honest Pros and Cons
- Under $40 — nothing at this price competes on features.
- 85,000+ Amazon reviews — more real-world feedback than any competitor.
- Lifetime warranty — MATEIN repairs, replaces, or refunds for product defects.
- The anti-theft pocket is genuinely useful.
- Includes a built-in USB charging port at this price point.
- Soft construction helps it pass airline sizers, even with borderline dimensions.
- Fits Frontier, Allegiant, Delta, and American Airlines personal item sizers.
- The luggage strap makes airport navigation easier.
- Zipper durability — expect replacement after 12–18 months of daily use
- United’s 10-inch width rule — 12-inch width is a risk on strict United flights
- Laptop strap not adjustable — 13-inch laptops shift inside
- USB port requires you to buy a power bank separately
- Not the most stylish bag — clearly “travel gear” in appearance
Who Should Buy the MATEIN Backpack?
Buy it if:
- You fly budget airlines — Frontier, Allegiant, JetBlue — and want a guaranteed personal item fit without spending over $50
- You’re an occasional traveler — once or twice a month at most
- You need a weekend trip bag that covers clothes, laptop, and accessories without paying for carry-on
- You want maximum organization at a price where getting it wrong doesn’t sting
Skip it if:
- You fly United regularly — the width puts you at risk on strict enforcement days
- You carry the bag daily for both commuting and travel — the zippers aren’t built for that frequency
- You care about aesthetics — this looks like exactly what it is
MATEIN vs The Alternatives
| Bag | Price | Best For | United-safe? |
|---|---|---|---|
| MATEIN (this bag) | ~$38 | Budget flyers, Delta/American/Frontier | ⚠️ Risk |
| Taygeer Travel Backpack | ~$32 | Exactly 18x14x8, shoe pouch | ⚠️ Risk |
| ECOHUB 18x14x8 | ~$36 | Frontier/Allegiant strict gates | ⚠️ Risk |
| Travelpro Maxlite 5 | ~$99 | Frequent flyers, all airlines | ⚠️ Test first |
| Slim laptop backpack | ~$45 | United-specific, 10″ width | ✅ Yes |
The MATEIN wins on price and features for most travelers. It only loses when United’s strict width rule is your primary concern.
Need help deciding? See our full 7 best underseat bags for all airlines.
Where to Buy
The MATEIN Travel Laptop Backpack is available on Amazon in multiple colors — black, grey, and several others. The 15.6-inch standard model is the one this review covers.
Prices fluctuate between $35 and $45 depending on color and Amazon deals. Black is consistently the most available and the best priced.
MATEIN Travel Laptop Backpack – A slim, sturdy, and anti-theft backpack with a water-resistant design
How We Researched This Review
We read every verified review mentioning airline use specifically — filtering for words like “personal item,” “Frontier,” “gate agent,” and “under the seat.” We cross-referenced with Reddit threads on r/onebag and r/travel where people report real gate outcomes.
We pulled dimension data directly from the Amazon product listing and from MATEIN’s own product page — not from third-party listing aggregators where dimensions are often copied incorrectly.
We compared against each airline’s official published personal item limits, verified from airline websites in June 2026.
When we say something passes or fails a size limit, it’s based on Reader’s Digest tested and verified published specs — not assumptions.
FAQ
Does the MATEIN backpack fit under airplane seats?
Is the MATEIN backpack good for Frontier Airlines?
What size laptop fits in the MATEIN backpack?
How long does the MATEIN backpack last?
Is the MATEIN backpack worth it at $38?
Related Read:-
- Does a Bento Bag Work as a UK Personal Item Bag? (2026 Real Airline Rules Tested)
- Backpack vs Handbag as Personal Item: Which Airlines Prefer?
- Personal Item Size 2026: Every Major US Airline Chart + Hidden Rules
Disclosure: LuggageWiz earns a small commission if you buy through our Amazon links — at no extra cost to you. We read thousands of reviews to give you an honest picture, not a sales pitch.
