Maxi-COSI Tanza Belt-Positioning Booster Car Seat, SeaDrift
$229.00
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Price: $229.00
(as of Feb 20, 2026 00:37:49 UTC – Details)
The Tanza Belt-Positioning Booster Car Seat is built for comfort, safety, and convenience as your child grows. Designed for kids 40–100 lbs. and 43.4″–57″, this high-back booster features a 10-position adjustable headrest to ensure the right fit at every stage. The rigid LATCH connectors provide a simple, secure installation, while its compact, foldable design and built-in carry handle make it easy to store, transport, and take on the go—ideal for traveling families. Crafted with EcoCare, our premium 100% recycled fabric made from plastic bottles, Tanza offers soft, breathable comfort that’s also eco-friendly. The durable PureCosi™ fabrics and inserts are made without added fire retardant treatments, making them safer for your child and more sustainable for the planet. All fabrics and cushions are machine-washable and dryer-safe for hassle-free cleaning. With a removable cup holder and an included carry bag, the Tanza Booster Car Seat is a practical, comfortable, and secure choice for every ride.
A BOOSTER SEAT THAT’S TRAVEL-READY AND EASY TO INSTALL The Tanza Belt-Positioning Booster Car Seats compact, foldable design simplifies travel and storage for busy families. All while our rigid LATCH connectors provide a simple, secure installation.
A COMFORTABLE RIDE FOR FAMILIES ON THE GO The Tanza kids car seat includes a machine-washable, dryer-safe foam seat pad and adjustable 10-position headrest that grows with your child. High-back booster car seat fits kids 40–100 lbs. and 43.4″–57″.
PURE COSI RIDES Our ultra-soft, yet durable PureCosi fabrics and inserts are made without added fire-retardant treatments, which is better for your child and our planet. All car seat booster fabrics and cushions are machine-washable and dryer-safe.
MAXI-COSI CAR SEAT DESIGNED WITH ECOCARE Our premium, future-friendly, 100%-recycled fabric made from plastic bottles. The yarn produced is soft, comfortable, and breathable—perfect for your little one.
MEETS FEDERAL SAFETY STANDARDS The Tanza Belt-Positioning Booster Car Seat was engineered and tested to meet or exceed federal safety standards.
ADDITIONAL BOOSTER SEAT FEATURES YOU’LL LOVE The booster carseat features a removable cup holder. Our forward facing car seat also comes with an included travel bag, so taking this kid and toddler booster seat on the go is a breeze.
Felipe –
Diseño compacto y ligero ideal para uso diario y viajes
Excelente calidad, Portable y se adapta tanto a uso diario como para viajes, viene con una bolsa de viaje incluida para viajes en avión.
Standi –
Come look at this Maxi-Cosi booster seat. You won’t be disappointed.
Maxi-Cosi is one of my favorite brands for infant/baby/toddler accessories. When I am searching for something and that brand “pop up”, I immediately check it out. I never worry about the quality of their products, which is always niceThis booster seat is exactly what I am looking for when my 2 year old (or at this point it may be the younger brother) is ready for a booster seat.Having a lightweight and foldable car seat is important for my family. I watch my grandkids every day of the week. That means that we are trading off kids and sometimes car seats twice daily. The installation of the booster is extremely easy. It just clicks right in. The ability to fold means that when it is not in use, it can easily be put away without taking up much space.I have three car seats in a row in my van. While I wouldn’t put the booster seat on the middle, it does fit on the ends. I may move it back a row eventually, but right now I can get it to work where it is.While the fabric and booster seat itself looks great, the fabric itself is okay. I am honestly not a fan of how it feels. It is very slippery, feeling more “vinyl” than my other car seat. Also, the smell when I first opened the box? It was terrible. Other reviewers have said it wasn’t bad, but I would have to disagree. I know I am sensitive to smells, but even my littles disliked it.I do like this booster seat. Once we are able to use it on a daily basis, I may add more about its functionality. For now I am happy with it as is, and look forward to having a child that is actually 40lbs using it!
Amazon Customer –
Great except a couple things
We travel often and now that my kids are booster size/age I was excited to find this product instead of lugging two huge car seats while traveling. It comes with its own bag that feels substantial, not like the crappy car seat bags one would buy online. It feels much more safe than a backless booster for sure, which is what I was considering for travel. The quality of this Maxi Cosi is great, better than, say, Graco or Chicco. My only two gripes are that the cupholders suck and that the isofix doesn’t close flush to the seat, it sticks out by about an inch. This makes me worry about the bag ripping over time as isofix is the contact point when you place the seat on the ground in the bag. Just seems weird. The other issue is that you can’t remove the back to use as a backless booster, what would be a nice feature.
Scout Kelly –
Solid Choice Booster Seat!
I recently reviewed the Maxi-COSI Tanza Belt-Positioning Booster Car Seat in Sea Salt, and it turned out to be a really practical option for my 5-year-old. It’s lightweight and so much easier to move between cars than some of the more rigid high-back boosters we’ve used. That flexibility makes it great for quick swaps or for storing it when we’re not using it.Because it’s not as structured as heavier seats, it doesn’t have that super solid, anchored feel—but it’s still well-made, with plenty of padding and comfort. My daughter sits comfortably in it, and I love the fit, even on longer drives, and the fabric feels durable and soft, which I appreciate.Overall, if portability and ease of use are at the top of your list, this booster is a solid choice.
Elle –
Maxi-COSI Tanza Belt-Positioning Booster Car Seat
This was easy to install! I got this for my own car as my 2-year-old grandson will need it soon. In an effort to review it, I strapped him in and took him for a ride in the neighborhood, telling him that he was going to have a chance to sit in a “big boy” seat. Although he’s smaller than the child for which this was designed, I felt he was comfortable and safe. The seat remained sturdy, and the quality of the materials seem very good. I’m glad that my grandson will grow into this, as it seems safe and comfortable for him.
Mark Suh –
Weak protection. Styrofoam head protection broke with little pressure.
Bought for a trip to Europe. Installed on a rental, worked well for a couple days, applied some pressure against headrest when trying to grab a bag in the backseat across from the booster seat and it broke. The head protection is apparently made out of styrofoam. Threw it away.
Heather –
The nicest booster I’ve seen!
This booster seat is very nice. It looks and feels quality. The padding is great and seems like it would be comfy. It is easy to install and latched perfectly into my car. It is lightweight enough to move from one vehicle to the next without much issue. We love it!
Amazon Customer –
Lightweight and easy to use
First of all I’m thrilled this booster is so easy to fold, unfold and install. It’s very portable and will make a great booster for when the grands drive the littles around. It’s also very light and I love that. Plus it’s machine washable and easy to clean which is good because my kids are kids and messes happen.The listing claims it’s travel ready and easy to install ans that is accurate. The latch connectors are amazing and I will never buy a seat or booster without then. This booster is also foldable and stores easily as advertisedSeat belt positioning is easy in this booster. And children fit easily into it. Pay close attention to the height and weight requirements one of my littles is just under the requirements and has to wait to use it. This fits kids 40–100 lbs. and 43.4″–57″.Fabric is soft with minimal odor. Fabrics and cushions are machine-washable and dryer-safe. Fabric is100%-recycled fabric made from plastic bottles.The Tanza Belt-Positioning Booster Car Seat was engineered and tested to meet or exceed federal safety standards. So that gives me peace of mind.I love the removable cup holder and included travel bag. Becuase both are useful.This is a great booster