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  • Est. 1936

    UK's Longest Established Nursery Retailer, Since 1936

Cybex
Car Seats

Cybex Solution X i-Fix Car Seat, Cobblestone Grey

£79.95 £109.95
Tax included

The Cybex Solution X i-Fix in Cobblestone Grey is a high back booster seat engineered to meet the latest UN R129/03 i-Size safety regulations. Designed for children from 100–150 cm (approx. 3–12 years), it features the brand’s patented reclining headrest for up to 7x greater head and neck safety¹, ensuring comfort and protection even during naps. With ISOFIX one-click installation, side-impact protection, and an adjustable design that grows with your child, the Solution X i-Fix delivers premium safety, comfort, and convenience for years to come.

From one of CYBEX’s original designs, the Solution X i-Fix is proof of the brand’s commitment to safety and innovation from day one. This i-Size high back booster offers advanced Linear Side-impact Protection for enhanced safety in collisions, while the patented 3-position reclining headrest keeps your child’s head securely within the safety zone – even when they fall asleep.

Built to last from preschool through to pre-teen years, the 11-position height-adjustable headrest ensures a perfect fit as your child grows. The ISOFIX connectors make installation secure, stable, and hassle-free, while the foldaway design means it’s also compatible with vehicles without ISOFIX points.

The Solution X i-Fix is approved to UN R129/03, one of the most stringent global safety standards, giving parents complete confidence in their child’s protection.

What’s Included

  • Cybex Solution X i-Fix High Back Booster Seat – Cobblestone Grey

Product Highlights

  • Patented reclining headrest – keeps your child’s head in the protected safety zone even during naps.
  • Up to 7x safer for head and neck protection¹ compared to seats without this feature.
  • Meets latest UN R129/03 safety standard – rigorous crash testing for ultimate reassurance.
  • ISOFIX one-click installation – simple, secure, and stable.
  • 11-position height-adjustable headrest – grows with your child from 3 to 12 years.
  • Linear Side-impact Protection (L.S.P.) – advanced safety in side collisions.
  • Adjustable backrest – ensures a perfect fit with your car seat.
  • Lightweight – only 7 kg for easy transfer between vehicles.
  • Machine-washable covers – easy maintenance and hygiene.
  • Compatible with CYBEX accessories like summer covers and ISOFIX guides.

Features & Benefits

  • Patented 3-position reclining headrest – prevents head tipping forward, keeping the head in the safety zone.
  • Enhanced side-impact protection with energy-absorbing L.S.P. system.
  • Height-adjustable headrest adapts to your child’s growth over 9 years of use.
  • ISOFIX compatibility for added stability and safety.
  • Foldable ISOFIX connectors for use in non-ISOFIX vehicles.
  • Adjustable backrest ensures comfort and a flush fit in your car.
  • Meets UN R129/03 – among the most up-to-date child car seat regulations.
  • Durable yet lightweight design – only 7 kg.
  • Easy-care covers – machine washable at 30°C.
  • Timeless design in Cobblestone Grey – stylish and practical.

Specifications / Size & Fit

  • Age range: Approx. 3–12 years
  • Child height: 100–150 cm
  • Child weight: 15–50 kg
  • Approval regulation: UN R129/03 i-Size
  • Dimensions: L 380 mm x W 470 mm x H 640 mm
  • Weight: 7 kg
  • Care instructions: Fabric covers machine washable at 30°C

Compatibility

Compatible with most car seats on the market.

Ideal Uses

Perfect for parents seeking a long-lasting, i-Size-compliant high back booster seat that delivers maximum safety, comfort, and convenience for everyday journeys, long trips, and growing children.

What our Customers Say

Consistently Rated 5 Stars By Our Awesome Customers
Description

The Cybex Solution X i-Fix in Cobblestone Grey is a high back booster seat engineered to meet the latest UN R129/03 i-Size safety regulations. Designed for children from 100–150 cm (approx. 3–12 years), it features the brand’s patented reclining headrest for up to 7x greater head and neck safety¹, ensuring comfort and protection even during naps. With ISOFIX one-click installation, side-impact protection, and an adjustable design that grows with your child, the Solution X i-Fix delivers premium safety, comfort, and convenience for years to come.

From one of CYBEX’s original designs, the Solution X i-Fix is proof of the brand’s commitment to safety and innovation from day one. This i-Size high back booster offers advanced Linear Side-impact Protection for enhanced safety in collisions, while the patented 3-position reclining headrest keeps your child’s head securely within the safety zone – even when they fall asleep.

Built to last from preschool through to pre-teen years, the 11-position height-adjustable headrest ensures a perfect fit as your child grows. The ISOFIX connectors make installation secure, stable, and hassle-free, while the foldaway design means it’s also compatible with vehicles without ISOFIX points.

The Solution X i-Fix is approved to UN R129/03, one of the most stringent global safety standards, giving parents complete confidence in their child’s protection.

What’s Included
  • Cybex Solution X i-Fix High Back Booster Seat – Cobblestone Grey
Product Highlights
  • Patented reclining headrest – keeps your child’s head in the protected safety zone even during naps.
  • Up to 7x safer for head and neck protection¹ compared to seats without this feature.
  • Meets latest UN R129/03 safety standard – rigorous crash testing for ultimate reassurance.
  • ISOFIX one-click installation – simple, secure, and stable.
  • 11-position height-adjustable headrest – grows with your child from 3 to 12 years.
  • Linear Side-impact Protection (L.S.P.) – advanced safety in side collisions.
  • Adjustable backrest – ensures a perfect fit with your car seat.
  • Lightweight – only 7 kg for easy transfer between vehicles.
  • Machine-washable covers – easy maintenance and hygiene.
  • Compatible with CYBEX accessories like summer covers and ISOFIX guides.
Features & Benefits
  • Patented 3-position reclining headrest – prevents head tipping forward, keeping the head in the safety zone.
  • Enhanced side-impact protection with energy-absorbing L.S.P. system.
  • Height-adjustable headrest adapts to your child’s growth over 9 years of use.
  • ISOFIX compatibility for added stability and safety.
  • Foldable ISOFIX connectors for use in non-ISOFIX vehicles.
  • Adjustable backrest ensures comfort and a flush fit in your car.
  • Meets UN R129/03 – among the most up-to-date child car seat regulations.
  • Durable yet lightweight design – only 7 kg.
  • Easy-care covers – machine washable at 30°C.
  • Timeless design in Cobblestone Grey – stylish and practical.
Specifications / Size & Fit
  • Age range: Approx. 3–12 years
  • Child height: 100–150 cm
  • Child weight: 15–50 kg
  • Approval regulation: UN R129/03 i-Size
  • Dimensions: L 380 mm x W 470 mm x H 640 mm
  • Weight: 7 kg
  • Care instructions: Fabric covers machine washable at 30°C
Compatibility

Compatible with most car seats on the market.

Ideal Uses

Perfect for parents seeking a long-lasting, i-Size-compliant high back booster seat that delivers maximum safety, comfort, and convenience for everyday journeys, long trips, and growing children.