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Cosco Topside Backless Booster Car Seat, Lightweight Booster Seats for Cars 40-100 lbs, Backless Booster Seat for Car, Rainbow

  • Based on 13,785 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Jan 31
Order within 19 hours and 28 minutes
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Color: Rainbow


Style: Rainbow


Features

  • GIVE YOUR CHILD A LIFT: The booster seat for kids 40-100 lbs provides extra height to keep seatbelts properly positioned. The car seat booster is comfortable for children measuring 43.4"-57".
  • MADE FOR GROWING KIDS: Designed for children weighing 40-100 lbs and measuring 43.4"-57", this child booster seat for car is a versatile kids booster seat for children 40-100 lbs and measuring 43.4"-57".
  • LIGHTWEIGHT, COMPACT DESIGN: Our booster carseat is easy to move between vehicles, perfect for families needing a portable car booster seat. Ideal as a travel booster seat for convenient use on the go.
  • MAKE CAR RIDES MORE COMFORTABLE: This booster car seat features extra-plush padding, making for a happier ride. The fabric cover of the travel booster seat is hand-wash only.
  • SEAT FRIENDLY DESIGN: This car booster seat helps keep your vehicle seats unmarked.

Description

Give your child a comfy lift with the Cosco Kids™ Topside Booster, featuring an extra-plush pad. This kids booster car seat gives kids the extra height they need to keep seatbelts properly positioned. Super lightweight, it’s simple to move from car to car and offers a seat-friendly design that won’t scuff or leave indentations on your vehicle seats. Comfy and lightweight, the Topside Booster is great for families on the go. Designed for kids 40–100 lbs. and 43"–57". Whether you're traveling with your little one or simply running errands, this car booster seat provides a comfortable journey. Make every ride smoother and more enjoyable with the Topside kids booster seats for cars 40-100 lbs. and 43"–57". El asiento para niños de carro also features a hand- washable fabric cover, making it easy to keep clean.

Brand: Cosco


Installation Type: Seat Belt


Material: Plastic, Polyester


Color: Rainbow


Orientation: Forward Facing


Product Dimensions: ‎14 x 15.5 x 6.5 inches


Item model number: ‎BC030-S1-US-EN


Minimum weight recommendation: ‎40 Pounds


Maximum weight recommendation: ‎100 Pounds


Minimum height recommendation: ‎43.4 Inches


Maximum height recommendation: ‎57 Inches


Material Type: ‎Plastic, Polyester


Material Composition: ‎70% Plastic, 30% Polyester


Care instructions: ‎Hand Wash


Style: ‎Rainbow


Batteries required: ‎No


Orientation: ‎Forward Facing


Forward-facing minimum child weight: ‎40 Pounds


Forward-facing maximum child weight: ‎100 Pounds


Item Weight: ‎2.9 pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jan 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good seat!
Color: Grape Style: Grape
Lightweight, comfortable! Not bad for the price!
Reviewed in the United States on August 6, 2025 by Takes a while to heat up

  • Good quality
Color: Rainbow Style: Rainbow
My kids like them, we bought two one for each car, easy to clean, good quality, cup holder is easy to pull out and big enough to hold their water bottle, nice color, and easy to remove cover to clean. When apply seatbelt, the seat is holding in tight and safe. Simple to use. Very sturdy material.
Reviewed in the United States on August 9, 2025 by Lovefromoversea

  • ideal for toddlers fits anycar
Color: Rainbow Style: Rainbow
light weight, easy to attach to car easy to clean just great !Product!
Reviewed in the United States on August 9, 2025 by ELAINE PIVIROTTO

  • Great value
Color: Leo Style: Leo
This booster is lightweight and narrow enough to fit between two forward-facing car seats in a compact SUV. It's good quality and easy to install
Reviewed in the United States on June 30, 2025 by Litce Tatiana Roman

  • It’s good overrall
Color: Leo Style: Leo
Great my son is 4 he said it’s comfortable and he likes it
Reviewed in the United States on April 15, 2025 by Jamisha

  • Works like a charm
Color: Leo Style: Leo
We’ve been using this brand for a few years and it works great. So much better than the old car seat. I feel like my son feels more responsible so it’s a win-win.
Reviewed in the United States on August 9, 2025 by Amazon Customer

  • Great Value, lightweight and sturdy.
Color: Leo Style: Leo
It’s very light and sturdy, works great in small back seats. The only thing that is missing is the strap to adjust the height of the seatbelt from reaching the child’s neck. There are others that offer the strap that is very helpful especially if the seatbelt is high up and the child is not very tall to prevent chafing or possible choking. ... show more
Reviewed in the United States on June 11, 2025 by BargainHunter23

  • Car seat investment
Color: Turquoise Style: Turquoise
Safety: This item is perfect, brought a matching carry bag to match. Perfect for on the go, light weight item, but serves the purpose.
Reviewed in the United States on July 1, 2025 by Lady Queen

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