Safety 1st Cosmo i-Safe Car Seat, 0-12 Years

The Safety 1st Cosmo i-Safe is a versatile car seat designed to grow with your child from birth up to 12 years (40–150cm). Offering secure seat belt installation, multi-stage adaptability and everyday comfort, this R129-approved car seat delivers long-term safety without the need for ISOFIX.

Designed as the only car seat you’ll ever need, the Cosmo i-Safe transitions seamlessly through every stage of your child’s development. Suitable from birth to approximately 12 years, it begins as a rear-facing car seat (40–87cm) before converting to forward-facing in harness mode (76–105cm) and later into a high-back booster (100–150cm).

Its integrated base allows smooth switching between travel directions, making it easier to position your child correctly. Installation is secure and straightforward using the vehicle’s seat belt, making it suitable for both i-Size compatible and universal seating positions.

Comfort is prioritised throughout, with full padding, a removable newborn inlay and head pillow for early support, plus 6 recline positions and 11 adjustable headrest positions. The 5-point harness adjusts simultaneously with the headrest and can be stored away once your child reaches 105cm.

Lightweight yet durable, and featuring a removable, machine-washable cover, Cosmo i-Safe is built for everyday family life and effortless transitions between vehicles.

What’s Included

• Safety 1st Cosmo i-Safe Car Seat
• Removable newborn inlay
• Removable head pillow
• Integrated 5-point harness

Product Highlights

• Suitable from birth to 12 years (40–150cm)
• R129/03 i-Size approved safety
• Secure seat belt installation (no ISOFIX required)
• Lightweight design for easy car-to-car transfer

Features & Benefits

• Multi-stage use (Group 0+1/2/3 equivalent) grows with your child
• Rear-facing from 40–87cm for enhanced early protection
• Forward-facing harness mode (76–105cm) with 5-point harness
• Booster mode (100–150cm) for older children
• 11-position headrest adjustment with one-hand operation
• Simultaneous harness adjustment with headrest height
• 6 recline positions for newborns through to toddlers
• Removable newborn inlay and head pillow for optimal early support
• Machine-washable cover (up to 30°C) for easy maintenance

Specifications / Size & Fit

• Child height range: 40–150cm
• Age range: Birth to 12 years approx.
• Weight suitability: 0–36kg
• Harness type: 5-point harness (up to 105cm)
• Installation: Vehicle seat belt installation
• Recline positions: 6
• Headrest positions: 11
• Product weight: 5.6kg (approx.)
• Product dimensions: 85 x 50 x 82cm
• Safety standard: R129/03 (i-Size compliant)

Compatibility

• Suitable for i-Size compatible and universal vehicle seating positions
• Designed for seat belt installation (no ISOFIX connectors required)

Ideal Uses

• Families wanting a long-lasting car seat
• Parents needing a lightweight seat for multiple vehicles
• Newborns requiring rear-facing protection
• Growing children transitioning from harness to booster
• Everyday commuting and long-distance travel