Are you looking for a quality harness booster seat you can trust? We’ve got you covered with our range of premium booster car seats that are designed for children from six months to approximately eight years of age with your needs as a busy and responsible parent at the heart of our booster seat designs.

All Maxi-Cosi harness booster seats feature our trademarked Air Protect Superior Side Impact Technology, adjustable reclining positions and moisture-wicking fabric, and come with a lifetime warranty.

Our six-point harness system will never let you down, and our innovative new dual action buckle ensures the perfect fit for every child. You’ll also love the Maxi-Cosi easy-care Cool Baby™ Wicking Fabric that draws moisture away from the skin, and selected models feature our world-first chin support for added comfort and stability.

Our booster car seat with harness adjustment system will keep your loved one fully harnessed up to approximately eight years of age, and some models feature convenient dual cup holders to reduce backseat mess on those long road trips.

Or select a model with expandable side wings that grows with your child to ensure you get the most use out of your child booster seat with harness while keeping your baby comfortable and fully supported.

Selected harness booster models also feature our innovative Anti-Vibration dampener that reduces road vibration to promote sleep and increase comfort for your child. And our custom-designed easy belt path ensures quick and easy buckle-up so you can get on the road sooner without frustrating delays while you struggle with cumbersome buckles.

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  1. Titan Pro
    Titan Pro

    The Titan Pro is designed to grow as your child does while still protecting them with superior safety features and extreme comfort.

  2. Luna smart harnessed booster seat - hero image
    Luna Smart Harnessed Booster Seat

    The Luna Smart is a fully harnessed forward facing car seat with a 6 point safety system, keeping your child securely harnessed from 6 months to approximately 8 years of age.

  3. Baby Car Seat Booster Luna Graphite
    LUNA Pro Harnessed Booster Seat

    World's first Headrest Technology with Dual Action Buckle and Crotch Adjustment

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