I'm flying with Southwest soon. Is this actually airline approved? It looks a bit bulky in the photos.

Yes! Zipped up, it's 18x11x11, fitting Delta, United & Southwest under-seat rules. The expansion is for during flight. I keep it zipped for boarding, then unzip in the air for more room.

Can I actually open the expansion sides while the bag is under the seat during the flight?

Definitely! Once cruising, I unzip the side facing me. It lets my cat stretch into a "suite" under the seat instead of being cramped. It keeps them so much calmer and quieter on long flights!

My dog is exactly 15 lbs. Should I get the Large or go up to the XL?

Measure first! Fits pets up to 15"L x 9"H. Weight is just a guide. Measure your pet while lying down. If they fit these specs, it's perfect for the cabin. For non-flight use, consider the XL.

How are the zippers? My cat is a bit of an escape artist and I don't want her getting out mid-flight.

Very secure! They have a locking feel so pets can't paw them open. Pro-tip: Glide zippers slowly at first to align the track. Once broken in, they stay smooth and keep your escape artist safe.

Does this have that strong "plastic" smell when you open it? Is the bed inside soft enough?

No harsh odors! Just air it out for a day. The fleece pad is super soft and 100% machine-washable. It’s a lifesaver for keeping the "travel suite" fresh and cozy after every single trip.

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Siivton Airline Approved Pet Carrier, 4-Way Expandable Cat Dog Carrier for Under-Seat Travel, Soft-Sided Portable Pet Bag with Removable Fleece Pad, Fits Small Pets Up to 15 lbs (18"x 11"x 11")

Siivton Airline Approved Pet Carrier, 4-Way Expandable Cat Dog Carrier for Under-Seat Travel, Soft-Sided Portable Pet Bag with Removable Fleece Pad, Fits Small Pets Up to 15 lbs (18"x 11"x 11")

Product ID: 109664464

Details

Brand
Siivton
Color
4 Extension
Material
Polyester
Product Dimensions
18"L x 11"W x
Special Feature
Adjustable

🧼Removable, machine-washable fleece pad

↔️4-way expandable for 150% more space

✈️Airline-approved compact design

€ 148.05

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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Details

Brand
Siivton
Color
4 Extension
Material
Polyester

Description

✈️ Elevate your pet’s travel game — because first class isn’t just for humans!

EASY MAINTENANCE - Removable fleece pad is machine washable, keeping your pet’s space fresh trip after trip.
VERSATILE MOBILITY - Includes luggage strap, seatbelt loops, and reinforced handle for stress-free airport and car travel.
BREATHABLE DURABLE - Premium polyester mesh ensures airflow and durability, keeping pets cool and calm in busy terminals.
TRAVEL READY DIMENSIONS - Precisely fits under most airline seats (18"x11"x11") for seamless in-cabin travel.
EXPANDABLE COMFORT SUITE - Unzip 4 sides to instantly create 150% more room, reducing pet anxiety mid-flight.

The Siivton Airline Approved Pet Carrier is a soft-sided, 4-way expandable travel bag designed to fit under most airplane seats (18"x11"x11") and comfortably accommodate small pets up to 15 lbs. Featuring breathable polyester mesh, a removable machine-washable fleece pad, and travel-friendly extras like a luggage strap and seatbelt loops, it ensures your pet travels in comfort and style whether by plane, car, or bus.

Specifications

ASIN	B07FY4PNTY
Additional Features	Adjustable Shoulder Strap, Airline Approved, Breathable, Expandable
Best Sellers Rank	#22,036 in Pet Supplies ( See Top 100 in Pet Supplies ) #46 in Cat Soft-Sided Carriers
Brand	Siivton
Brand Name	Siivton
Closure Type	Zipper
Color	4 Extension Gray_Blue
Compatible with Vehicle Type	Airplane, Bus, Car
Customer Reviews	4.3 out of 5 stars 8,933 Reviews
Dog Breed Size	Extra Small, Medium, Small
Included Components	1 x Inside Pad,1 x Shoulder Strap
Item Dimensions L x W x H	18"L x 11"W x 11"H
Item Type Name	Cat Carrier
Item Weight	1.4 Kilograms
Manufacturer	Sivtoon
Manufacturer Part Number	ST-A-EU0052
Material	Polyester
Material Type	Polyester
Maximum Weight Recommendation	15 Pounds
Model Name	Expandable Pet Carrier
Model Number	LB01-L
Pet Type	Bird, Cat, Dog, Small Animal
Product Dimensions	18"L x 11"W x 11"H
Product Style	Modern
Recommended Uses For Product	Airline, Camping, Traveling
Size	18.0"L x 11.0"W x 11.0"H
Special Feature	Adjustable Shoulder Strap, Airline Approved, Breathable, Expandable
Target Audience	Bird, Cat, Dog, Rabbit
Target Species	Dog
UPC	712641825842
Unit Count	1.0 Count
Warranty Description	12 Months Since The Date of Purchase

Reviews

K**E

18.02.2022

S**E

21.01.2025

C**A

7.01.2024

S**E

6.02.2021

E**I

23.06.2024

A**K

15.11.2025

S**W

20.12.2019

J**N

18.12.2025

C**E

17.08.2025

I**O

4.03.2022

V**A

23.04.2023

A**R

4.01.2026

C**Z

15.11.2021

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€ 148.05

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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