Cosco Kids Finale DX 2-in-1 Booster Car Seat That Grows with Your Child
The Cosco Kids Finale DX 2-in-1 Booster Car Seat is built to provide dependable safety. Moreover, it offers lasting comfort and everyday convenience for growing children. Designed for forward-facing use, it transitions from a secure 5-point harness toddler seat to a belt-positioning high back booster.
Its lightweight construction and slim profile make it ideal for family vehicles. Additionally, it fits well in carpools and during travel. The Cosco Kids Finale DX 2-in-1 Booster Car Seat supports comfort on the go.
Two Modes for Long-Lasting Use with Cosco Kids Finale DX 2-in-1 Booster Car Seat
The Cosco Kids finale DX 2-in-1 booster car seat offers two seating modes to accommodate your growing child:
- Forward-Facing 5-Point Harness: 40–65 lbs (43.4″–49″)
- High Back Belt-Positioning Booster: 40–100 lbs (43.4″–52″)
This versatile design provides years of reliable use while supporting your child’s changing needs.
Lightweight & Perfect for Busy Families
Weighing less than many traditional booster seats, the Finale DX is easy to move between vehicles.
Whether you’re switching cars, traveling with grandparents, or participating in carpools, the lightweight design makes installation and transportation simple and convenient.
Slim Design Fits Three Across
The narrow profile allows the Cosco Kids Finale DX 2-in-1 Booster Car Seat to fit three seats across in many standard vehicles.
This space-saving design is ideal for growing families with multiple children, making it easier to maximize seating without sacrificing comfort or safety.
Comfortable & Easy to Clean
Soft padding provides a comfortable seating experience during both short trips and long family drives.
The removable seat pad is machine washable and dryer safe, making cleanup after spills and everyday messes quick and effortless.
Dishwasher-safe cup holders keep snacks and drinks within easy reach while making cleaning even easier.
Designed with Safety in Mind
Safety is always a priority.
The Cosco Kids Finale DX 2-in-1 Booster Car Seat meets or exceeds applicable Federal Safety Standards and features a secure 5-point harness during toddler mode for added protection.
Parents can install the seat using either the LATCH system or the vehicle’s seat belt, providing flexibility for most standard vehicles.
Key Features
- 2-in-1 convertible booster car seat
- Forward-facing toddler car seat
- Belt-positioning high back booster
- 5-point safety harness
- Lightweight and portable
- Fits three seats across in many vehicles
- Machine-washable seat pad
- Dryer-safe fabric
- Removable dishwasher-safe cup holders
- LATCH and seat belt installation
- Meets or exceeds Federal Safety Standards
- Comfortable padded seating
- Slim, space-saving design
Specifications
Brand: Cosco Kids
Model: Finale DX 2-in-1 Booster Car Seat
Color: Dusk
Material: Polyester
Installation: LATCH or Vehicle Seat Belt
Orientation: Forward Facing
Harness Type: 5-Point
Height Positions: 3
Forward-Facing Weight Range: 40–65 lbs
Forward-Facing Height Range: 43.4–49 inches
Booster Weight Range: 40–100 lbs
Booster Height Range: 43.4–52 inches
Maximum Weight Capacity: 100 lbs
Vehicle Compatibility: Standard Passenger Vehicles
Why Parents Love It
Parents appreciate the Cosco Kids Finale DX 2-in-1 Booster Car Seat for its lightweight design.
Additionally, it offers long-lasting versatility and a space-saving profile.
Moreover, its ability to fit three across in many vehicles makes it an excellent choice for larger families.
Machine-washable fabrics and dishwasher-safe cup holders simplify everyday maintenance.
Finally, it includes dependable safety features and two seating modes, making it a smart investment that grows with your child.




















BoredAardvarkBFF –
Works great. Even on an airplane. To make it more comfortable, fold up 2 hand-towels, one for each side, and slip them underneath the seat cover. We also got a waterproof liner from a different company to put on top of the seat to add extra cushioning and “insurance” if you know what I mean, for the longer trips. Super lightweight. Use a bungie cord to fasten it to your carry-on luggage when trotting around the airport.
Tina –
Great car seat for my 7 yr old autistic grandson. The special needs seats are not affordable as they range from 800-1000 and I’ve tried others only to have meltdowns and escapes. This car seat has room to grow and 5 point harness which he loves. This seat purchase is a must for autistic bigger child that needs the harness for compression. A+++++ purchase. No meltdown with transition only smiles ❤️
Ronald Liebert –
Lightweight, easy to install
Shirleyags –
Great buy, easy install and transfer from car to car.
Tracey K. –
Nice, granddaughter loves it.
Carol Martinelli –
Very good quality
linda humphrey –
Cosco Kids Finale DX 2-in-1 Booster Car Seat is an excellent choice for parents looking for safety, convenience, and value all in one.
What really stands out about this car seat is its versatility. It easily transitions from a forward-facing 5-point harness to a belt-positioning booster, allowing it to grow with your child for years. This makes it a smart long-term investment without sacrificing safety or comfort. It supports children from around 30–65 pounds in harness mode and up to 100 pounds as a booster, which is impressive for its price range.
Another major advantage is how lightweight and compact it is. If you regularly switch the seat between vehicles or need something travel-friendly, this model makes it incredibly easy. Despite its slim design, it still feels sturdy and secure, and it even fits three across in many vehicles—perfect for larger families or carpools.
Comfort and practicality are also well thought out. The seat pad is removable and machine washable, which is a lifesaver for busy parents dealing with everyday messes. The included cup holder is a nice bonus and can be placed on either side, adding to its flexibility.
Overall, the Cosco Kids Finale DX 2-in-1 Booster Car Seat delivers dependable safety, ease of use, and great value. It’s a solid, no-frills option that gets the job done well, making it a reliable choice for families who want quality without overspending.
Larry boy –
This replaced another car seat. My daughter wanted the harness type belt. This was cheaper than the one with no harness. Durable and easy to install and remove.