Harmony Defender 360 Max SIP (Meets New Standards) - Safe in the Seat
More coming soon!
Need Help Choosing a Car Seat?
More coming soon!
Our recommendation: From 2 years until the seat is outgrown (average 9/10 years old)
A 3-in-1 car seat that can be used forward-facing, in high-back booster mode, and in backless booster mode
Preferably after your child has outgrown their rear-facing convertible car seat, but can be used from 2+ years
Stand Out Features of this Car Seat
Affordable
Seat is Good for You If:
You have a tall child.
Use Caution if:
You have a vehicle with non-removable headrests.
Quirks to be Aware of:
Hard to assemble
Cannot be installed with a lap-only seat belt
Child Fit Information
Installation Information
Airplane Use
This seat is FAA-Approved in harness mode.
For help with all things airplane travel and car seats, check out our newest resource: Safe in the Sky.
SITS Bottom Line
Videos
Car Seat Quick Tour
Similar Car Seats
Specifications
Product Information
Rear Facing Limits
Forward-Facing Limits
Height: 27-57"
Weight: 26.5-65 lbs
Head Height Rules: ears must be below the top of the headrest
Lower Anchor Connectors Weight Limit: 50 lbs
No Back Booster Limits
Height: 34-57"
Weight: 40-120 lbs
Head Height Rules: ears must be below the top of the headrest
Highest Belt Guide Settings
High Back Booster Limits
Height: 34-57"
Weight: 40-120 lbs
Head Height Rules: ears must be below the top of the headrest
Other Important Details
Expiration Limits
10 years
Crash Replacement Policy
Harness
no-rethread
Lock-off
no
Vehicle Seat Protector
This brand does not permit a vehicle seat protector.