--- product_id: 1774662 title: "Topside Backless Booster Car Seat, Lightweight Booster Seats for Cars 40-100 lbs, Backless Booster Seat for Car, Leo" brand: "cosco" price: "$198.48" currency: USD in_stock: true reviews_count: 13 category: "Cosco" url: https://www.desertcart.us/products/1774662-topside-backless-booster-car-seat-lightweight-booster-seats-for-cars store_origin: US region: United States of America --- # Fits kids 43-57 inches tall Supports 40-100 lbs securely 2.2 lbs ultra-lightweight Topside Backless Booster Car Seat, Lightweight Booster Seats for Cars 40-100 lbs, Backless Booster Seat for Car, Leo **Brand:** cosco **Price:** $198.48 **Availability:** ✅ In Stock ## Summary > 🚗 Elevate Every Ride: Lightweight, comfy, and safety-smart for your growing kiddo! ## Quick Answers - **What is this?** Topside Backless Booster Car Seat, Lightweight Booster Seats for Cars 40-100 lbs, Backless Booster Seat for Car, Leo by cosco - **How much does it cost?** $198.48 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1774662-topside-backless-booster-car-seat-lightweight-booster-seats-for-cars) ## Best For - cosco enthusiasts ## Why This Product - Trusted cosco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Portability:** Weighing just 2.2 lbs, this booster moves seamlessly between vehicles—perfect for busy families on the go. - • **Vehicle-Friendly Design:** Protects your car’s upholstery with a backless, seat-friendly base that won’t leave marks or indentations. - • **Seatbelt-Perfect Positioning:** Elevates your child for optimal seatbelt alignment, enhancing safety without bulk or fuss. - • **Tailored Fit for Growing Kids:** Designed to accommodate children from 43 to 57 inches tall and 40 to 100 lbs, ensuring a safe, comfortable ride every time. - • **Plush Comfort Meets Practicality:** Extra padding keeps kids cozy on short drives or long road trips, while the fabric cover wipes clean easily for hassle-free maintenance. ## Overview The Cosco Topside Backless Booster Seat is a lightweight (2.2 lbs), compact booster designed for children 40-100 lbs and 43-57 inches tall. It ensures proper seatbelt positioning with extra-plush padding for comfort, is easy to transfer between vehicles, and protects car seats from damage. Ideal for families seeking a reliable, travel-friendly booster that combines safety, convenience, and comfort. ## Description Product Description Give your child a comfy lift with the Cosco Kids™ Topside Booster featuring an extra-plush pad. This booster 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". From the Manufacturer Belt-positioning booster 40-100 pounds, 43 to 57, full pad or partial pad options, lightweight design for easy traveling, packaging single of multi pack. Review: A Great Transition to a Big-Kid Seat - ⭐⭐⭐⭐⭐ My grandson absolutely loves his new big-boy seat! One of the first things I noticed was how lightweight it is, which makes it easy to move between vehicles when needed. It also stores very easily in tight spaces when not in use, which is a huge plus. The design is simple but effective. The seatbelt fits securely underneath the armrests, helping keep the booster seat in place and providing added security for my grandson while riding. He finds it comfortable, and I appreciate the peace of mind knowing he’s riding safely. Overall, this is a great booster seat that is practical, easy to use, and comfortable for kids. I would definitely recommend it to other parents and grandparents looking for a reliable option. Review: Perfect Booster Seat for Everyday and Long Trips - We are really happy with this backless booster seat. From the start, it felt sturdy and well-made, which gave us peace of mind. Our child finds it very comfortable, even on longer car rides, and the design makes it so easy for them to buckle themselves in without help. That’s been a huge convenience for us as parents. We recently took it on a long road trip, and it proved itself even more. After hours in the car, our child stayed comfortable, and when we had a few spills and crumbs (as always happens with kids), it was surprisingly easy to clean. Everything wiped right off, and the seat looked good as new. The booster is lightweight enough to move between cars quickly but still feels solid once it’s in place. Overall, it’s safe, reliable, and parent-friendly, and our child genuinely likes it. I’d recommend it to anyone looking for a no-fuss, dependable booster seat for everyday use and longer trips alike. ## Features - 100% polyester - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006ZISVSO | | Age Range Description | Kid | | Best Sellers Rank | #319 in Baby ( See Top 100 in Baby ) #4 in Child Safety Booster Car Seats | | Brand | Cosco | | Color | Leo | | Customer Reviews | 4.7 out of 5 stars 14,899 Reviews | | Global Trade Identification Number | 00884392570415 | | Harness Type | 3-Point | | Infant Toddler Car Seat Type | Booster Car Seat | | Installation Type | Seat Belt | | Item Dimensions D x W x H | 15"D x 15"W x 6.5"H | | Item Weight | 2.2 Pounds | | Manufacturer | Dorel Juvenile Group-CA | | Material | Fabric | | Material Type | Fabric | | Maximum Height Recommended | 57 Inches | | Maximum Weight Recommendation | 100 Pounds | | Minimum Height Recommendation | 43 Inches | | Minimum Weight Recommendation | 40 Pounds | | Model Number | BC030BJDZ | | Number of Height Positions | 1 | | Orientation | Forward Facing | | Part Number | BC030BJD | | Product Dimensions | 15"D x 15"W x 6.5"H | | UPC | 884392570415 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Cosco - **Color:** Leo - **Installation Type:** Seat Belt - **Material:** Fabric - **Orientation:** Forward Facing ## Images ![Topside Backless Booster Car Seat, Lightweight Booster Seats for Cars 40-100 lbs, Backless Booster Seat for Car, Leo - Image 1](https://m.media-amazon.com/images/I/8157mu1Jj6L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Does this seat fit with 3 car seats across one seat?** A: It would really depend on the size car you want to use them in. A compact...I doubt it, mid size...maybe, sedan, or minivan...should be no problem. I think they're about 20" across if you count the width of the arms, not the width across the bottom which is more like 15" or so. We used this one in a jeep grand cherokee along with a full size carseat. There was room for a 12 year old in between but it was tight and not that comfortable for the passenger. **Q: Does this meet FAA standards?** A: Hi B. Wilkens, You cannot use a belt positioning booster seat on the air lines as they require a lap and shoulder belt and the airline seats just have a lap belt. If I can answer any other questions, please let me know. **Q: what is width of the bottom of this car seat? I see the dimensions listed, but am curious on width of bottom of seat and again at arm rest level. thx** A: Hi Brian, The actual foot print of the seat is 11 inches wide. The widest point on the actual seat is 14.75 inches wide. The width of the arm rests is 16 inches. I hope this helps. If you have any other questions, please let me know. **Q: Is the cover machine washable?** A: Hello, and thanks for your interest in the Top Side Booster! This fabric padding is not machine washable. The pad will need to be hand washed with warm sudsy water, rinsed clean and air dried. We cannot suggest using bleach or other harsh cleaners, nor can we suggest dry cleaning. I do want to clarify for you if the padding is washed/dried in the machine and it becomes damaged, this is not covered under warranty as all machines are different. That is why we recommend to hand wash/air dry. This will also be outlined for you in the product manual that comes with the booster in the event that you need to refer to it in the future! I hope this information is helpful for you. Please feel free to let us know if you have any other questions. You are also welcome to contact us via phone 1-800-544-1108 or email crsocial@djgusa.com (Please enter AMAZON in the subject line so we can identify your email quickly). ## Customer Reviews ### ⭐⭐⭐⭐⭐ A Great Transition to a Big-Kid Seat *by L***R on June 8, 2026* ⭐⭐⭐⭐⭐ My grandson absolutely loves his new big-boy seat! One of the first things I noticed was how lightweight it is, which makes it easy to move between vehicles when needed. It also stores very easily in tight spaces when not in use, which is a huge plus. The design is simple but effective. The seatbelt fits securely underneath the armrests, helping keep the booster seat in place and providing added security for my grandson while riding. He finds it comfortable, and I appreciate the peace of mind knowing he’s riding safely. Overall, this is a great booster seat that is practical, easy to use, and comfortable for kids. I would definitely recommend it to other parents and grandparents looking for a reliable option. ### ⭐⭐⭐⭐⭐ Perfect Booster Seat for Everyday and Long Trips *by D***A on September 8, 2025* We are really happy with this backless booster seat. From the start, it felt sturdy and well-made, which gave us peace of mind. Our child finds it very comfortable, even on longer car rides, and the design makes it so easy for them to buckle themselves in without help. That’s been a huge convenience for us as parents. We recently took it on a long road trip, and it proved itself even more. After hours in the car, our child stayed comfortable, and when we had a few spills and crumbs (as always happens with kids), it was surprisingly easy to clean. Everything wiped right off, and the seat looked good as new. The booster is lightweight enough to move between cars quickly but still feels solid once it’s in place. Overall, it’s safe, reliable, and parent-friendly, and our child genuinely likes it. I’d recommend it to anyone looking for a no-fuss, dependable booster seat for everyday use and longer trips alike. ### ⭐⭐⭐⭐⭐ Perfect for temporary use and price is right *by I***. on May 8, 2026* Very portable for visiting family. Not very comfortable for long trips as little cushioning in the seat but perfect for sightseeing. Easy to transfer from one car to another. Straps in securely and keeps child secure. ## Frequently Bought Together - Cosco Topside Backless Booster Car Seat, Lightweight Booster Seats for Cars 40-100 lbs, Backless Booster Seat for Car, Leo - Graco TurboBooster 2.0 Backless Booster Car Seat, Denton - Graco TurboBooster 2.0 LX Highback Booster Seat with Latch System, Gannon; Infant to Toddler Transition car seat, Safe & Comfortable --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/1774662-topside-backless-booster-car-seat-lightweight-booster-seats-for-cars](https://www.desertcart.us/products/1774662-topside-backless-booster-car-seat-lightweight-booster-seats-for-cars) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-14*