MIXJOY XL Dog Car Seat for Large Medium Dogs - Back Seat Extender

In this review of the MIXJOY XL Dog Car Seat the bottom line is simple: it is built for owners of large or medium dogs who need a safer, more comfortable back seat solution that reclaims usable space. The single biggest reason to buy is the back seat extender design that increases the back seat area by about 40%, creating a broad, stable surface where larger pets can lie down without falling into the footwell. Installation and materials are straightforward and focused on durability and water resistance, which makes it a practical choice for everyday travel.

Key Features

• Back Seat Extender: Extends the back seat area by roughly 40% to give larger dogs more room to rest during drives.
• Extra Large Size: The cover measures 34x22x21.5in and fits most cars, SUVs, trucks and limousines for roomy pet travel.
• Waterproof Fabric: Made from 600D Oxford fabric so it resists water, mud and fur and wipes clean after messy rides.
• Safety and Security: The included dog safety belt and hammock sides help prevent falls and protect seats from scratches during sudden stops.
• Ventilated Mesh Sides: Two mesh panels reduce pet anxiety and improve air circulation while the vehicle is moving.
• Storage Pockets: Dual pockets keep leashes, toys and small items organized on longer trips.

Who It's For

The MIXJOY XL is best for owners of medium to large dogs who need a sturdy, easy to install solution that increases floor area and keeps pets from slipping into the footwell. It works well for families who alternate passengers and pets in the back seat because the extender design still allows sitting alongside the pet when positioned accordingly.

It is less appropriate for owners who need a full wrap-around bench that completely blocks back seat passengers, or for those who require a soft booster-style car seat for very small breeds. If you need a carrier that secures a small dog at chest height, consider a different style.

Pros & Cons

Pros

• Provides a noticeably larger resting surface for medium and large dogs, improving comfort on drives.
• Durable, waterproof 600D Oxford fabric is easy to clean and protects upholstery from mud and fur.
• Hammock sides, mesh panels and an included safety belt increase security and comfort for anxious dogs.

Cons

• Some buyers have noted durability concerns over long-term heavy use, so expect normal wear if used daily by very active dogs.

Specifications

Brand	MIXJOY
Model Size	Extra Large (34x22x21.5in)
Material	600D Oxford fabric, waterproof
Design	Back seat extender / hammock with mesh sides
Includes	Free dog safety belt and two storage pockets
Compatible Vehicles	Cars, SUVs, Trucks, Limousines

Our Verdict

The MIXJOY XL Dog Car Seat is a practical, value-oriented choice for owners of medium and large dogs who want a sturdier, waterproof solution that expands usable back seat area. It balances safety features, easy cleaning and useful pockets, making it a smart option for most family vehicles, though very heavy daily use could reveal wear over time.

Frequently Asked Questions

Will this fit in an SUV back seat?
Yes; the 34x22x21.5in size is designed to fit most SUVs, trucks and family cars while adding a larger flat surface.

Is it waterproof and easy to clean?
Yes; the seat is made from 600D Oxford waterproof fabric that wipes clean and resists mud and fur.

Does it come with a safety tether?
Yes; a free dog safety belt is included to help keep a pet secured during travel.