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Siivton 4 Way Expandable Pet Carrier

Curated from 96 real Reddit conversations

Refreshed on: March 20, 2025

Siivton 4 Way Expandable Pet Carrier

Brand: Siivton

Price: $32

Snoop Score:

7.7

Sentiment

7.5

Popularity

8.7

Technical

7.4

Buy on Amazon for $32 See All Soft Sided Carriers Reviews

As an Amazon Associate, I earn from qualifying purchases.

Snoop's Take

The Siivton 4 Way Expandable Pet Carrier is an airline approved soft-sided carrier designed for cats, puppies, and small dogs. This versatile carrier features a unique four-way expansion capability, allowing pets to have more space and comfort during travel. Consumer feedback highlights the carrier's spacious design and ease of use, with many users appreciating its removable fleece pad for cleaning. "Flying was a breeze," one user noted, emphasizing the carrier's convenience during air travel. Others have praised its sturdy construction and multiple entry points, making it easy to get pets in and out. However, some users have warned that the carrier may be too small for larger pets or may not fit under certain airline seats, indicating a need for careful size consideration. Overall, the Siivton 4 Way Expandable Pet Carrier receives positive recommendations for its spacious and comfortable design, making it a great choice for pet owners who travel frequently with their furry companions.

Not for you? Check out our other rated Soft Sided Carriers

I'm just worried they will reject me once I tell them the dimensions lol.
Positive Feedback

How would that fit under a single seat if open? I even have to squish mine under without expanding.
Negative Feedback

7.7

Siivton 4 Way Expandable Pet Carrier

Buy on Amazon for $32

Air Travel

8 / 10

Car Rides

5 / 10

Vet Visits

5 / 10

Everyday Outings

5 / 10

See how this compares to all Soft Sided Carriers

What it does well!

Key strengths users can’t stop talking about.

Airline approved for travel

“I'm just worried they will reject me once I tell them the dimensions lol.”➕

“I now worry this carrier will be too big and we will be denied boarding.”➕

“I want to get him a carrier that takes up an entire seat, but the double carriers that take up two seats seem too large for him.”➕

“USPS' long-awaited new mail truck makes its debut to rave reviews from carriers.”➕

Spacious with four-way expansion

“I’d recommend a soft-sided expandable one—something cozy but not too spacious so he still feels secure.”➕

Easy to clean with removable fleece pad

“He's pretty docile and easy to get in and out of the carrier that shouldn't be a problem.”➕

“It’s also extremely safe, especially for residential areas with kids around.”➕

Multiple entry points for convenience

“This bag has side zippers that expands the bag (think a pop out tent ⛺️) while still fully enclosed.”➕

Sturdy and spacious design

“I like it as it is sturdy, light, and spacious enough for our little dude.”➕

Collapsible for easy travel

“the reason being because it’s collapsable under the seat.”➕

Sturdy and comfortable for pets

“My boy is really happy with it, and he is on the larger size for a Pomeranian.”➕

“It’s very nice.”➕

Spacious with expandable sides

“Somehow they are a bit more roomy and a better shape, so they can stand up and turn around in there.”➕

“Usually you can pull it a bit forward and just unzip one side and it still fits quite comfortably.”➕

Easy to fly with dogs or cats

“Flying was a breeze. Nobody checked carrier size and nobody bothered me with her head out of the carrier once we were in flight.”➕

“you cannot even add a pet if you have the ascent seats.”➕

“I was told they don’t measure the bag or check inside to see how dog fits and that an inch or two over should be fine.”➕

“Flying was a breeze.”➕

Great for traveling with pets

“They are fantastic for traveling. At least one of us is comfortable in the cramped cabin.”➕

“They are great 😊 highly recommended.”➕

Easy to travel with pets

“Highly recommend Frontier if you’re traveling with a cabin pet!”➕

“It was super easy!!! I didn’t even have to go to the counter to have a tag printed.”➕

“Everything went perfectly ok!”➕

Does not require special tags at check-in

“if anything goes wrong I will take me and my kitty home and just not go on our trip.”➕

“They didn’t measure my carrier or anything either, and it fit fine under the seat!”➕

Convenient for security procedures

“just a heads up on that step”➕

Carrier fits under airline seats

“Does anyone have experience taking a pet carrier as carry on luggage?”➕

“It’s bigger than you think.”➕

Expandable design allows more space for pets

“It worked out really well.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.

May be too small to fit under some airline seats

“How would that fit under a single seat if open? I even have to squish mine under without expanding.”➕

“I can see how one side could be expanded and it would fit. But frankly I can’t believe how small the under seat space is.”➕

Inconsistent airline enforcement of carrier dimensions

“In general airport employees are way more concerned with other things.”➕

“Check with your airline. Each airline has different rules for dimensions of carriers.”➕

Carrier may be too small for large pets

“The pet must fit in the carrier and be able to stand, turn around.”➕

Compare On All Talked About Dimensions

Product Name	Price	Score	See Details	Buy Now
Petskd Top-Expandable Pet Carrier	$59	9.1	Details	Buy
LEHNI Soft-Sided Pet Carrier for Cats and Dogs	$19	9.1	Details	Buy
Vceoa Cat and Dog Carrier	$19	8.0	Details	Buy
Akinerri Cat Carrier - Portable Foldable Pet Bag	$38	8.0	Details	Buy
Pesen Cat, Dog Carrier	$26	7.9	Details	Buy
Siivton 4 Way Expandable Pet Carrier	$32	7.7	Details	Buy
Morpilot Cat Carrier - Soft Sided Carrier for Cats and Dogs	$29	7.0	Details	Buy
Henkelion Cat and Dog Carrier	$25	6.9	Details	Buy
Petmate Soft-Sided Kennel Cab Pet Carrier	$25	6.5	Details	Buy
SWUVVI Soft Sided Cat/Dog Carrier	$17	6.0	Details	Buy
YLONG Cat Carrier Airline Approved Soft-Sided Pet Travel Bag	$12	5.3	Details	Buy
Lasaviin Fashion Dog Purse Pet Carrier for Small Pets	$49	5.2	Details	Buy
Top Tasta Dog Cat Carrier Travel Carrier for Pets	$24	5.1	Details	Buy
JMOON Cat Carrier Soft-Sided Airline Approved Pet Carrier	$16	5.1	Details	Buy
ZaneSun Cat Carrier - Soft-Sided Pet Travel Carrier	$14	4.3	Details	Buy
Top Tasta Cat Carrying Case Pet Carrier	$19	3.7	Details	Buy
Adkyop Dog Soft-Sided Carrier	$20	3.3	Details	Buy
SportPet Designs Soft Sided Cat Carrier	$18	3.0	Details	Buy
MuchL Pet Carrier Cat Dog Carrier for Small Medium Pets	$15	0.8	Details	Buy

Core Power Plays

The specs and strengths that make it shine.

Soft-sided carriers must fit under the seat and allow pets to stand and turn.

“Your cat has to be able to stand up and turn around comfortably in it.”➕

“You’ll have literally no time to resolve it.”➕

Allegiant requires pet carriers no bigger than specified dimensions

“I stupidly bought a soft carrier that was TSA approved assuming TSA requirements were the same as Allegiant but they are NOT.”➕

“Our dog is 23 lbs but long. Too long for the carrier.”➕

“Wondering if that will really happen.”➕

Hidden Hero Hacks

Unexpected tricks and side‑door uses you’ll love.

Suggestions for using calming sprays for cats in carriers

“I just want to add that you should bring a towel. Spray a little cat calming spray on it, cover the carrier.”➕

Advice on using calming products for travel

“the important thing is getting natural travel ointment, not sedatives.”➕

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’

Air Canada has updated their pet carrier size regulations.

“Only allow soft sided and the height must adhere to the 7.75 - 8.00 inches.”➕

“There basically are no carriers that short.”➕

“Uncomfortable for you but better for your cat.”➕

“I will definitely take your advice and call on my day off.”➕

TSA approval is dependent on airline dimensions

“I want to find one (preferably in pink or white) that is TSA approved and will be easy to take him in and out of at the airport.”➕

“TSA doesn’t really approve the carrier or the size, the airline does.”➕

Airline pet carrier regulations

“Both dogs need to be able to fully turn in carrier.”➕

Advice on preparing pets for travel

“Do a few practice runs before the big day.”➕

“Check with your vet about letting him have a glass of wine while flying, I'm Kidding!”➕

Concern about needing health certificates for pets

“Did you need to have a health certificate of any kind”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.

Concerns about airline staff behavior towards pets

“It feels draconian especially after explaining to the guy that she's tethered to the bag so no means of running out.”➕

“I was yelled at for having my hand in the carrier.”➕

Experience with carrier not checked during travel

“They never checked the carrier at either airport.”➕

“I can let you know if I have any issues.”➕