Defender 360° – Midnight
3-in-1 Combination Deluxe Car Seat
For children 22 – 110 lbs. (10 – 50 kg) | 27-57 in (68.6 – 144.8 cm)
The Harmony Defender 360° 3-in-1 Deluxe Car Seat in Midnight is a sleek and practical choice for families looking for value, comfort, and versatility. Thoughtfully designed to grow with your child from toddler to big kid, the Defender transitions smoothly from a 5-point harness to a high-back booster and then to a backless booster—making it a long-lasting solution for years of travel.
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Parents will appreciate the simple, no-rethread harness adjuster, allowing for quick and easy changes as your child grows. The contoured seat-saver base and space-conscious V-shape help the seat fit well in most vehicles, while high-density comfort foam and soft, machine-washable fabrics add an extra layer of comfort on every ride.
The Defender 360° has received recognition from trusted sources, including the IIHS Best Bet Booster award for its fit with vehicle seat belts, as well as praise from Babble and Baby Consumers. It’s equipped with features designed to support your child’s comfort and help them ride securely as they grow.
At Harmony Juvenile Products, we understand the importance of reliability and ease of use. That’s why every product we design is made to support your family’s everyday adventures—safely, comfortably, and confidently.
Product Features
- 3-in-1 car seat: 5-point harness, high-back, and backless booster
- The forward-facing Harness mode fits children from 22 – 65 pounds (10 – 29.5 kg) and 27 – 57 inches (68.6 – 144.8 cm) tall
- The forward-facing Booster modes without harness (high-back or backless) fit children from 40 – 110 pounds (18.1 – 50 kg) and 34 – 57 inches (86.4 – 144.8 cm) tall
- IIHS BEST BET booster rating for both high-back and backless modes
- 360° of full-body protection guarantees maximum safety to your child’s head, torso, and legs.
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- Deep, supportive headrest, backrest, and seat base for 360° crash protection from front, rear and side-impact collisions
- The unique V-shaped, smooth-contoured seat design protects your car’s upholstery and is a much-needed space-saver, allowing a better fit in any type of vehicle and easy access to the UAS belt
- EPE energy-absorbing foam in headrest, backrest, and base
- UAS (Universal Anchorage System) and Top Tether equipped
- 1-hand, no re-thread height adjustment harness
- 9-position, 1-hand height adjustable headrest; extends to 29″
- Up-front, 1-hand harness adjuster
- The unique recline system offers a multitude of recline positions
- Anti-torque design
- The ultra-plush seat pad, made with durable, premium fabric and extra foam, provides maximum comfort and is removable for washing
- Shoulder and crotch pads are included
- The visually pronounced belt guides promote correct installment of the seat belt
- Comes with a practical cup and/or snack holder that can be easily installed on either armrest
Safety
Thoughtfully built for comfort and support, the Defender 360° surrounds your child with deep padding and EPE energy-absorbing foam at the head, torso, and legs. Its reinforced structure is designed to help manage impact forces, while UAS and Top Tether connectors support a secure, stable installation. With an IIHS BEST BET booster rating, it’s a reliable choice for everyday travel.
Comfort
From daily commutes to long road trips, the Defender 360° keeps your child cozy with its ultra-plush, extra-padded seat and premium, durable fabric. The adjustable headrest, multiple recline positions, and cushioned shoulder and crotch pads provide a tailored fit that grows with your child, ensuring superior comfort at every stage.
Ease-of-Use
Parent-friendly features make adjustments effortless—no more struggling with straps or re-threading harnesses. The one-hand, 9-position height-adjustable headrest, up-front harness adjuster, and simple recline system allow for quick, hassle-free customization. Plus, the seat’s unique design saves space in your vehicle while providing easy access to the UAS belt for a seamless installation.
Anti-Torque Backrest
The Defender 360° features a thoughtful anti-torque design intended to help limit seat rotation during certain types of impact. Paired with a deep, reinforced shell, it offers added stability and structural support for your growing child.
Additional features
Ultra-plush seat cover made with premium fabrics
Unique recline system
Removable & machine washable premium seat cover
UAS & Top Tether equipped
Specifications
Net weight: 8.3 kg (18 lbs.)
Gross weight: 9.6 kg (21 lbs.)
How-to & support
Replacement parts
Cup holder
Shoulder Belt Safety Guide with screw
Locking clip
Backrest connector rod, screw with washer