Harmony Defender 360° 3-in-1 Convertible Booster Car Seat with Insert - Midnight

Model Number: 0302009MDN
Web Code: 13655332


Enjoy peace of mind knowing your child is secure with the Defender 360 3-in-1 harnessed booster car seat. This multi-functional car seat converts easily from a 5-point harness to a high-back or backless booster seat to accommodate your child as they grow. With easy installation and many safety features, it's no wonder this seat is a parent favourite.
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Weight capacity

  • Front Facing (min): 10kg
  • Front Facing (max): 54.7kg
  • Booster Seat (min): 10kg
  • Booster Seat (max): 54.7kg

Security features

  • Rollover tested with 5-point harness to keep your child safe in the event of a roll
  • LATCH (UAS) and Top Tether equipped to fit securely in any compatible vehicle
  • EPE energy-absorbing foam in headrest, backrest, and base protects your child in the event of an impact
  • 360 degrees of full-body impact protection with a supportive headrest, backrest, and seat base guarantee maximum safety to the head, body and legs as your child grows
  • Belt path design prevents child from sliding under the lap belt upon impact in booster seat mode
  • Designed and tested for structural integrity at energy levels approximately 2X the federal crash test standards
  • Exceeds Canadian CMVSS 213 standards, US FMVSS 213 standards, and European ECE standards for safety

Other features

  • Forward facing 3-in-1 deluxe car seat can be used as 5-point Harness, high-back booster seat, or backless booster seat, accommodating your child as they grow
  • Unique V-shape, smooth-contoured design allows for easier, safer installations while protecting your vehicle's upholstery
  • 9-position, 1-handed, no re-thread harness height adjustment makes it easy to adjust the seat for your child even when your hands are full
  • Ultra-plush seat pad is made with durable premium fabrics and extra foam for maximum comfort, and is removable for easy machine washing
  • Cup/snack holder can easily be installed on either armrest
  • Included shoulder belt guide instructs you how to install the shoulder belt safely
  • Additional features include: Up-front harness adjuster, anti-torque design, and a unique infinite recline system
Car Seat Type
2-in-1 Harness to Booster Car Seat
Car Seat Orientation
Rear-facing Car Seat
Forward-facing Infant Car Seat
High-backed Booster Seat
Harness Points
Base Material
HDPE Plastic; Polyester
Compatible Strollers

Safety Requirements

Minimum Seat Weight Capacity
10 kg
Maximum Seat Weight Capacity
54.7 kg
Weight Capacity:Front Facing(Min)
10 kg
Weight Capacity:Front Facing(Max)
54.7 kg
Weight Capacity:Booster Seat(Min)
10 kg
Weight Capacity:Booster Seat(Max)
54.7 kg

Popular Features

Cup Holder
Removable Seat Cushion
Washable Fabric
Detachable Base
Side Impact Protection
LATCH System
Snack Trays
Aircraft Certified
Country of Origin


46.355 cm
67.31 cm
50.8 cm
8.3 kg
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