SKU: 12707693608
maxi cosi la

maxi cosi la Maxi Cosi Tanza Belt Positioning Booster Seat

Sale price$19.40 Regular price$21.56
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

maxi cosi la Maxi Cosi Tanza Belt Positioning Booster SeatA foldable high back booster with rigid UAS connectors and a 10 position headrest, designed for children 18 to 45 kg who need a secure belt positioning solution that travels easily between vehicles. Key Features Rigid UAS (ISOFIX) connectors lock into your vehicle's anchor points in seconds, providing a firm and stable installation without seat belt routing. TensionFix red to green indicators on the base give clear visual confirmation that the booster

A foldable high-back booster with rigid UAS connectors and a 10-position headrest, designed for children 18 to 45 kg who need a secure belt-positioning solution that travels easily between vehicles.

Key Features

  • Rigid UAS (ISOFIX) connectors lock into your vehicle's anchor points in seconds, providing a firm and stable installation without seat-belt routing.
  • TensionFix™ red-to-green indicators on the base give clear visual confirmation that the booster is securely connected to the vehicle.
  • 10-position adjustable headrest grows with your child, keeping the vehicle seat belt properly positioned at the shoulder as they get taller.
  • Compact foldable design with a built-in carry handle makes the booster easy to store, carry, and transfer between cars, ideal for carpools and travel.
  • PureCosi™ seat fabrics are made without added flame-retardant chemicals, offering a cleaner environment next to your child's skin.
  • EcoCare™ 100 percent recycled fabric from plastic bottles is soft, breathable, and built to last through years of daily use.
  • All seat fabrics and foam cushions are machine washable and dryer safe, keeping the booster fresh after snacks, spills, and long road trips.
  • Removable cup holder keeps drinks and small items within your child's reach, and cleans up quickly when needed.
  • Engineered and tested to meet or exceed Canadian federal safety standards for belt-positioning booster seats.

Specifications

Child Weight Range 18–45 kg (40–100 lbs)
Child Height Range 110–145 cm (43–57 in)
Headrest Positions 10
Installation Rigid UAS (ISOFIX) connectors with TensionFix™ indicators
Fold Compact foldable with carry handle
Fabric EcoCare™ 100% recycled + PureCosi™ (no added flame retardants)
Machine Washable Yes, fabrics and cushions; dryer safe
Cup Holder Removable, included
Safety Standards Meets or exceeds federal safety standards


Frequently Asked Questions

At what age is my child ready for a belt-positioning booster like the Tanza?

The Tanza is intended for children who have outgrown their forward-facing harnessed car seat and weigh between 18 and 45 kg (40–100 lbs) while measuring 110 to 145 cm (43–57 in) tall. Most children reach this stage around age four to five, but always check your current car seat's outgrown limits first.

Can I install the Tanza without the UAS connectors?

The Tanza is designed to be used with its rigid UAS connectors for a secure fit. Refer to the product manual for your specific vehicle compatibility and installation guidance.

Is the Tanza allowed on airplanes?

Belt-positioning boosters rely on the vehicle's lap-and-shoulder belt and are generally not certified for aircraft use. Check airline policies before travelling.

Warranty & Notes

Maxi-Cosi products are backed by a 2-year manufacturer warranty from the original date of purchase covering defects in materials and workmanship under normal use. Register your product at the Maxi-Cosi website for full warranty support. Always ensure your child meets both the weight and height requirements before using this booster. The vehicle seat belt must cross the child's shoulder and lap correctly when the booster is in use.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12707693608

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ashlynnk
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★★★★★ 4
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Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
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Abby B
Houston, US
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026
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EE
Grantham, US
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
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Reviewed in the United States on May 17, 2026
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Kate
Los Angeles, US
★★★★★ 5
Super cute, comfortable, practical, love that they are slip on
Size: 10.5, Color: Tobacco/Black
I have worn these 2-3 times already. The first day was a school/work day so I was on my feet 9 hours and the only issue I had was with the side of the boot rubbing against my ankle. I just make sure I wear socks high enough to cover my ankles or jeans that go into the boots now for long wear days. Absolutely love them! They keep my feet dry in this snow( we live in Michigan). I had been looking for a pair like this for awhile now and was getting super frustrated that I couldn't find my size in any that I liked. I saw that they had these available in a 10.5 and I wear 11. I looked at the Sorel website reviews (since the amazon ones weren't super helpful on sizing) and they said that the boots ran big so I took a chance on the 10.5 fitting me. They fit perfect. I have long narrow feet but I could see where they would be tight or uncomfortable on someone with wider feet. I've been trying to find a pair for my mom now since she has boot envy.
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Reviewed in the United States on January 27, 2026
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Nicholle King
Bozeman, US
★★★★★ 5
Worth it.
Size: 8.5, Color: Crushed Clay/Gum 2
Love all my Sorels. These were really cute, good color, comfortable, warm, fit well, good quality and sturdy. I would order again.
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Reviewed in the United States on March 26, 2026

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