Romer Kidfix i-Size Cosmos Black

Our safest place for growing dreams
3.5 years - 12 years | 100 - 150 cm | 15 - 36 Kg
The new generation KIDFIX i-SIZE has been developed in partnership with leading car manufacturers, to give the ultimate car travel safety to your child. It's equipped with the proven technologies of XP-PAD and SecureGuard for frontal impact protection, whilst the new design SICT protects your child from side collisions. Carefully placed air ventilation holes aid air circulation to keep your child comfortable for longer.
Expert protection
The new KIDFIX i-SIZE has been designed and approved to the new i-Size standard, making it our safest KIDFIX* to date. Every feature on the seat has been developed with one thing in mind - maximum protection. The proven technologies of XP-PAD, SICT and SecureGuard, now combined with the redesigned seating area for optimum crash performance, offer all-round protection.
* Safest KIDFIX to date during internal tests, Britax Römer 2021
Comfort and practicality at its core
Comfort and practicality come as standard with the KIDFIX i-SIZE. The generously padded soft fabric covers and carefully placed air ventilation holes on the shell ensure your child travels in comfort for longer. The slim design of the seat allows for three KIDFIX i-SIZE seats to be installed in the back row of a wide range of cars, whilst the headrest markings help the parents find the right headrest height every single time.
Sustainable Quality – caring for the world our children grow up in
The cleverly engineered KIDFIX i-SIZE weighs around 1.3 Kg lighter than its predecessor, and is designed and made in our factory in Germany – helping with shorter transport routes and minimising the impact on the environment. We’ve also replaced our packaging with sustainable options: you’ll find the KIDFIX i-SIZE packed in plant-based bags and recycled cartons from responsible sources. Even the mighty swift tags we use to attach product information are biodegradable on soil, resulting in no microplastics entering the ecosystem.
--------------
Redesigned seating area for optimum crash performance
Working in close partnership with leading car manufacturers, the seating area has been redesigned to help reduce the neck loads by up to 10%.
Unique protection for the neck and chest
Despite good planning and careful driving, you can never prepare for a collision. To protect your child's sensitive neck area in case of a frontal impact, Britax Römer has developed a shock-absorbing foam pad. It prevents the impact of your child's chin on their chest, absorbing up to 30% * of the energy. A jerky forward head movement is reduced and the neck is protected. At the same time it provides additional padding around the edges of the seat belt.
Advanced Side Impact Protection – SICT
Our SICT offers superior protection to your child in the event of a side collision. It reduces impact forces by minimising the distance between the car and the car seat and deforms to absorb the energy before it reaches your little one. To benefit from the protection, simply adapt the SICT on the side of the car seat closest to the door. SICT reduces the side impact forces by up to 40%
SecureGuard
The SecureGuard helps to protect your child’s delicate abdominal area by adding an extra – a 4th – contact point to the 3-point seat belt. By keeping the lap belt in an optimal position over your child’s pelvic bones SecureGuard helps reduce abdominal forces in the event of a frontal collision by up to 35 %*, and at the same time allows your child freedom of movement during the journey.
Easy adjustable, ergonomic headrest
Our headrest is designed specifically for the comfort of older children and can easily be adjusted to the correct position. Helpful markings at the back of the headrest guide parents to find the right headrest height every single time when they change the seat between cars or transport multiple children in the same seat.
Highback booster protection
Our highback boosters protect your child in 3 ways: the seat shell provides head to hip protection for your child, especially in the event of a side impact, the upper and lower belt guides provide correct positioning of the seat belt, and the padded headrest provides safety and comfort for your child’s head and neck.
Dimensions (H x W x D) 63 – 83 x 48 x 42 cm
Weight 6.7 Kg
Approval: i-Size (R129)

Last updated: January 13, 2025

Overview

At BuyForYourBaby, we aim to provide clear and reliable shipping information. This Shipping Policy explains where we ship, processing times, delivery estimates, shipping costs, tracking, and important delivery information.

Shipping coverage

We currently ship only to the United States.
Orders shipping to any other country are not supported at this time.

Order Processing Time

Orders are typically processed within 1–2 business days (Monday to Friday), unless otherwise stated on the product page (for example, pre-orders or special-order items).
Orders placed on weekends or public holidays are processed on the next business day.

Delivery Timeframes

Shipping times consist of processing time + transit time:

• Processing Time: 1–2 business days
• Transit Time: 5–6 business days
• Total Estimated Delivery Time: 6–8 business days

Delivery estimates are provided as guidance and may vary due to carrier operations, peak seasons, weather conditions, or unforeseen delays.

Shipping Costs

We offer flat-rate shipping within the United States.

• United States: $33.00 USD

Shipping fees are clearly shown at checkout before payment. The checkout total always reflects the final shipping cost.

Carriers

We ship orders using trusted carriers:

• USPS
• DHL

The carrier used for your order may vary depending on your location and logistical requirements. Carrier selection is handled automatically to ensure timely delivery.

Order Tracking

Once your order has been shipped, you will receive a shipping confirmation email with tracking information (where tracking is available). You can also track your shipment via our Track Your Order page.

Taxes

Since we ship only within the United States, international customs duties do not apply.
Any applicable sales taxes are calculated and displayed at checkout in accordance with local regulations.

Delivery Issues (delays, damage, or loss)

If your order is delayed, arrives damaged, or appears to be lost, please contact our support team as soon as possible. We will assist you and work with the carrier to resolve the issue where applicable.

Last updated: January 13, 2026

Overview

BuyForYourBaby is a registered trade name operated by Baby Center S.R.L.S. We are committed to providing a safe, fair, and transparent shopping experience. This policy explains our rules regarding returns, refunds, cancellations, exchanges, and warranties.

Applicable Countries

This policy applies to orders shipped to the United States only.
Orders shipped outside the United States are not supported at this time.

Return Eligibility

• Return requests must be submitted within 30 calendar days of delivery.
• Items must be new, unused, unwashed, undamaged, and in their original condition and packaging, including all accessories, manuals, tags, and parts.
• Returns may be accepted for both defective and non-defective items, subject to the conditions outlined in this policy.
• Returned items must be shipped using a tracked shipping method.

Return Shipping Cost

• Return shipping labels are not provided.
• Unless otherwise agreed in writing, return shipping costs are the customer’s responsibility.
• If the return is due to a defective item or an error on our part, we will work with you to provide an appropriate resolution, which may include reimbursement or replacement where applicable.

Order Cancellation

• Cancellation requests may be submitted within 12 hours of placing an order, provided the order has not yet been shipped.
• To request a cancellation, please contact our support team as soon as possible.

Refunds

• Refunds are issued only after the returned item has been received and inspected.
• Approved refunds are processed to the original payment method only.
• Refund processing time is typically 3–10 business days after inspection.
• Original shipping charges are non-refundable, except in cases of defective items, shipping errors, or where required by applicable law.

Undeliverable or Refused Shipments

• If a shipment is returned due to an incorrect or incomplete address provided at checkout, refusal of delivery, or failure to collect the package, any return shipping or handling costs may be deducted from the refund, where applicable.
• Shipping fees paid at checkout are non-refundable in such cases.

Exchanges

• Exchanges may be available for size, color, or product variations, subject to stock availability.
• Please contact customer support before returning any item to confirm exchange eligibility.
• Additional shipping charges may apply.

Restocking Fee

• A restocking fee of 15% of the product price may apply to eligible non-defective returns or cancellations, where applicable.
• No restocking fee is charged for defective items or shipping errors.

Warranty

Warranty is handled under our Warranty & Support Policy. Unless otherwise stated on the product page, most items are covered by a standard 12-month manufacturer warranty starting from the delivery date.

Return Method & Address

All returns and inspections are processed at:
BABY CENTER S.R.L.S.
Viale San Domenico, SNC
03039 Sora (FR), Italy