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  • Harmony Defender 360 MAX SIP Harnessed Booster Seat – 3-in-1 Combination Deluxe Car Seat, Machine-Washable Cover, For Children 12–55 kg (26.5–120 lbs.), 69–145 cm (27–57 in) – Black

Harmony Defender 360 MAX SIP Harnessed Booster Seat – 3-in-1 Combination Deluxe Car Seat, Machine-Washable Cover, For Children 12–55 kg (26.5–120 lbs.), 69–145 cm (27–57 in) – Black

5.0 out of 5 stars (4)
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About this item

  • 3-IN-1 VERSATILITY WITH AWARD-WINNING SAFETY: The Defender 360 MAX SIP grows with your child, transitioning from a 5-point harness (up to 29.5 kg / 65 lbs.) to a high-back booster and then to a backless booster, providing long-term use and exceptional value. Rated an IIHS Best Bet Booster in both booster modes, it ensures superior belt fit and safety as your child grows.
  • 360° FULL-BODY CRASH PROTECTION: Cushioned with energy-absorbing EPE foam in the headrest, backrest, and base, the seat provides Side Impact Protection for front, side, and rear collisions, keeping your child safe on every ride.
  • SECURE UAS/LATCH INSTALLATION: Equipped with the Universal Anchorage System (UAS/LATCH) and top tether, this seat allows quick, stable, forward-facing installation, ensuring a secure fit every time.
  • PREMIUM COMFORT FEATURES: With an ultra-plush, machine washable seat cover, shoulder and crotch pads, multiple recline positions, and practical cup/snack holder that can be easily installed on either side, long rides become cozy and convenient.
  • EFFORTLESS 1-HAND ADJUSTMENTS: A 9 position, no re-thread harness height adjuster and a 1 hand, front harness adjuster provide ultra smooth, easy customization as your child grows.
  • PROTECTS YOUR CAR, SAVES SPACE: Smooth, contoured V-shaped seat protects your vehicle’s upholstery, saves space, and allows three car seats to fit across in most vehicles, making installation easier even in tight spaces.
  • COMPREHENSIVE STANDARDS: Compliant with Canadian CMVSS 213 and NEW USA FMVSS 213 standards and remains safe for use up to 10 years after date of manufacture. Visually pronounced belt guide ensures proper seat belt routing every time.

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Product information

Technical Details

Product Dimensions ‎50.8 x 46.4 x 67.3 cm; 8.3 kg
Minimum weight recommendation ‎12 Kilograms
Maximum weight recommendation ‎54 Kilograms
Minimum height recommendation ‎68.6 Centimeters
Maximum height recommendation ‎144.8 Centimeters
Material type ‎Fabric, Plastic
Material composition ‎92.8% Plastic, 7.2% Fabric
Care instructions ‎Hang to Dry, Machine Wash Gentle Cycle
Number of reclining positions ‎9
Batteries required ‎No
Orientation ‎Forward Facing
Forward-facing minimum child weight ‎12 Kilograms
Forward-facing maximum child weight ‎54 Kilograms
Harness type ‎5-Point
Item Weight ‎8.3 kg

Additional Information

ASIN B0FNXXWPGK
Customer Reviews
5.0 out of 5 stars (4)

5.0 out of 5 stars
鶹 Rank
Date First Available Aug. 27 2025
Manufacturer HARMONY

Feedback

Harmony Defender 360 MAX SIP Harnessed Booster Seat – 3-in-1 Combination Deluxe Car Seat, Machine-Washable Cover, For Children 12–55 kg (26.5–120 lbs.), 69–145 cm (27–57 in) – Black

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Product details

  • Product Dimensions ‏ : ‎ 50.8 x 46.4 x 67.3 cm; 8.3 kg
  • Manufacturer ‏ : ‎ HARMONY
  • ASIN ‏ : ‎ B0FNXXWPGK
  • Country/Region of origin ‏ : ‎ China
  • Customer Reviews:
    5.0 out of 5 stars (4)

From the brand

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  2. Affordable Safety, Comfort & Style

  3. Trusted by families for almost two decades

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    Harmony Juvenile Booster Seats

  5. At Harmony Juvenile Products, we’re more than just a brand — we’re parents, too.

    Proudly Canadian, our mission is to design safe, comfortable, and thoughtfully crafted products that help families enjoy every journey with confidence.

    Wherever the road takes you, you can trust the Dreamtime Elite Comfort Booster to protect what matters most.

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Product Description

car seat, booster seat, child safety, travel essentials
car seat, booster seat, child safety, travel essentials
car seat, booster seat, child safety, travel essentials
car seat, booster seat, child safety, travel essentials
car seat, booster seat, child safety, travel essentials

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