Cosco Topside Booster Car Seat, Rainbow
$19.99
colorrainbow
In Stock
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Guests are saying
The Cosco Kids Topside Booster Car Seat is a lightweight and compact option that excels in comfort and ease of use. Guests appreciate its ability to fit three seats across in a vehicle, making it ideal for families on the go. The seat's design allows for easy installation and transfer between cars, while providing a safe and comfortable experience for children. Although it lacks cup holders, its overall functionality and affordability make it a popular choice among parents.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.6 out of 5 stars with 82 reviews
comfort: 3 out of 5
ease of installation: 4 out of 5
quality: 3 out of 5
value: 3.5 out of 5
durable: 3.67 out of 5
20% would recommend
5 recommendations
1 out of 5 stars
Thumbs down graphic, would not recommend
9 March, 2026
Save your money.
We bought this for little 5 minute trips. The company has shady business practices...and the seats are low quality. I do not reccomend.
1 out of 5 stars
Thumbs down graphic, would not recommend
1 March, 2026Verified purchase
(no review title)
It was too snug and I did not like the quality.
3 out of 5 stars
Thumbs down graphic, would not recommend
30 November, 2025Verified purchase
let down
didn't come in it's original box. came dirty. said I can't exchange it.
5 out of 5 stars
28 November, 2025Verified purchase
Great price, great product
Light weight and slimmer than the standard booster seats. Can fit 3 in a row in the back of a sedan nicely.
5 out of 5 stars
Thumbs up graphic, would recommend
30 July, 2025Verified purchase
Great booster seat
The booster seat is wonderful, It is easy to stall and my granddaughter looks comfortable and safe!!
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Great Booster Car Seat!!
I received the car seat booster for free and I had to leave an honest review. This car seat booster was easy to install. It's being using by my 8 year old who weights 52 lbs. She fits there comfortably and said that it's comfortable to sit in it for hours. We took a long trip and she was not complaining that's for sure. I'd say it's com-probable to other brands. I'd definitely recommend it to others if you are in the market for a good booster car seat for your child.
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Super convenient car seat!
I use this booster car seat on my SUV car for my 5 years child. It's super light weight and convenient, I can use it for my travel as well! Definitely will recommend it for my friends and family. Thanks Cosco booster car seat!
3 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Does not fit my child well
I received this product in exchange for my honest opinion/review. CONS: The seat is smaller overall when compared to other seats we've tried. The biggest problem is the height of the seat causing the seatbelt to sit uncomfortably against my daughter's neck. Also, there are no cupholders. Pros: there is a good amount of cushion. BENEFITS: Price, Cosco products are more affordable. I would not buy this product nor would I recommend it.
4 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Super easy to install. Very easy to use.
I really do enjoy the ease of this si.ple booster seat. It's super easy to install and super easy to use. UT grows with your child and I like the fact that I can swap it out to different vehicles with ease. Very comfortable material and stains cam be wiped away very easily. Will definitely be using this for years to come when my younger children need a booster seat.
4 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Lightweight booster
I really like how light this booster seat is. It will be great for taking on an airplane and traveling with. It isn't super padded - but again, it will be great for traveling. The one bummer was that the manufacturer date was July 2022, so as of November 2023, we have lost out on over a year of use of this seat.
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Compact, comfortable, easy to use and move!
This booster is used by our 7 year old child and we absolutely love it! It has completely replaced our old booster. We liked that it has a lot of good safety ratings including full approval by the NHTSA. It has a nice compact design so that it doesn't take up a lot of room in the car but it is still roomy enough for her to sit in. It is lightweight and very easy to move around, take out and move to another car, etc. She says it is very comfortable to sit in for long periods of time. She has long legs and this booster actually lifts her up a little higher than her old booster so she is able to have some more leg room. We haven't had any spills or anything on it yet (thankfully!) so I am not able to tell you how well it washes, but as far as crumbs and stuff it vacuums off and comes clean easily. Overall we really like this booster and it works great for everyday use.
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Amazing product
Great for children over 5 years old as well! Love the neutral colors. Easy to install. Actually, VERY easy to install. Keeps you legal on the road and the kids safe! I was surprised how simple it was to use and the perfect high for seatbelt adjustment.
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Amazing
I love this Cosco brand booster seat it worked amazing for my child in the car I love the size and the design it's comfortable and modern I 10/10 recommend
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Comfy and Durable Seat
My kids love this seat. It's way more comfortable for them to sit in on long rides than the existing seats we had. It's also really easy to transfer to other vehicles if needed.
4 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Inexpensive and lightweight making this a perfect backup!
Thanks Cosco for kindly sending me this booster seat in exchange for my honest review! This seat is extremely lightweight and budget friendly which make it the perfect option for grandparents, babysitters, and traveling. For our every day seat we prefer a few more bells and whistles like a cup holder and plush padding, but this is the perfect backup seat! However, if you don't desire those extras, want an option that saves more space, or want a great budget item then this seat is perfect for you!
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Great transition seat
This is has been great. My daughter is comfortable but safe. She feels more independent while still being safe and in the correct position for a seatbelt. The seat is light weight and east to move from one car to another.
4 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Easy to manage when moving from vehicle to vehicle.
This has been the easiest booster seat to use. With this being my 4th child it would have been nice to have had before now. The seat is light enough for my 7 year old to carry for himself. He states that the seat is comfortable since I couldn't have tested that for myself! Only slight issue found was no drink holder. In one vehicle that was not an issue since cup holders built into the car were available. One vehicle does not have backseat cup holders so drinks had to be handed back and forth with someone in the front. We did work around this by putting a different booster seat with a cup holder in the one vehicle. While putting the Cosco booster seat in the car with backseat cup holder's.
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Great booster seat!
My five year old really liked using this booster seat. It's safe and comfortable. The cover is easy to clean.
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
Great transition booster
Easy to switch from car to car and fits well. Stays secure and is comfortable.
5 out of 5 stars
1 July, 2024
originally posted on Cosco Kids
I would definitely buy this product again.
We used this for our 7 year old who hates car seats. This one he actually enjoyed. The padding was great and he found it very comfortable. In the past he would fight us on riding in a booster but this one he actually liked. He was able to see out the window which he generally complains about not being able to do. All in all a great booster and would use this for our other children. My son was getting out of the car when I took the pic so didn't have chest belt on, but it sits right where it needs too with the booster.