Big Kid Car Seat
When your child is ready to face forward, our selection of high-back booster seats offers the perfect balance of comfort, safety, and ease of use. Suitable from around 4 to 12 years (15–36 kg), these forward-facing seats meet the latest European safety standards and are ideal for families travelling in Spain. We recommend keeping your child rear-facing as long as possible — see our toddler car seats for extended rear-facing options.
Pricing
Minimum rental price starts from: €50
The price shown is for a single item for up to one week. For multiple items or longer rentals, our Rent More – Pay Less discounts apply, and you’ll receive a personalised quote for confirmation before your booking is finalised.
Disclaimer: Products and brands shown are examples only. We will always provide high-quality items suited to your needs, but exact models may vary depending on availability.
General Specifications
- Age range: 4 – 12 years (approx.)
- Weight range: 15 – 36 kg
- Forward-facing booster seats
- High-back design with side-impact protection
- Installed with ISOFIX or standard 3-point seat belt (depending on model)
- All seats meet or exceed EU safety standards
Available Big Kid Car Seats for Rental
BeSafe iZi Flex FIX i-Size
Award-winning safety and comfort with flexible installation and space-saving design.
- i-Size approved (R129)
- Suitable for children 100–150 cm (approx. 4–12 years)
- Allows for up to three seats in a row
- Excellent side-impact protection and ergonomic comfort
- Installed via ISOFIX or 3-point vehicle belt
- Award-winning design focused on safety and flexibility
- BeSafe iZi Flex Installation Video
Britax Kidfix SL
i-Size ready highback booster with flexible ISOFIT connectors for simple installation and safety.
- Group 2/3 car seat, suitable from 15 – 36 kg (approx. 4–12 years)
- Secure ISOFIT system with flexible connectors for easier fitting
- Deep, softly padded side wings for enhanced side impact protection
- Adjustable headrest designed to change with the child
- Lightweight design for effortless transfer between cars
- Dimensions: 66–85 x 51 x 45 cm | Weight: 6.4 kg
- Britax Kidfix SL Installation Video
Britax Kidfix 2 Z-Line
i-Size certified booster with deep side wings and advanced crash protection.
- i-Size compliant with enhanced crash protection
- For children 15 – 36 kg (approx. 4–12 years)
- Developed in partnership with leading car manufacturers
- Adjustable headrest and deep-padded side wings
- Dimensions: 42 x 44 x 60 cm | Weight: 6.6 kg
- Note: Our model does not include the XP Pad
- Britax Kidfix Installation Video
Britax Kidfix II XP SICT
The ultimate travel-friendly booster that doubles as a handy backpack.
- Weight groups: 15 – 36 kg (approx. 4 – 12 years)
- Certified under ECE R44/04 (Group II / III)
- ISOFIT (ISOFIX-type) installation option (can be used with or without ISOFIT)
- XP-PAD frontal impact booster pad (designed to reduce neck loads)
- SICT side impact protection (adjustable, extendable on side toward the car door)
- SecureGuard clip to help keep lap belt positioned low over pelvis
- Adjustable V-shaped headrest
- Dimensions (approx): 54 x 39 x 67 – 85 cm | Weight: ~7.4 kg
- Britax Kidfic II XP SICT Installation Video
Trunki BoostApak
The ultimate travel-friendly booster that doubles as a handy backpack.
- Combines a compact booster seat and backpack in one
- Certified to ECE R44.04 standards (Group 2/3)
- Suitable for children under 135 cm and 15–36 kg
- Lightweight and ideal for travel or taxi journeys
- BoostApak Installation Video