hearts-suit
SITS Fav SEAT
canada
Canadian Version

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SITS checks manufacturers and retailers daily to ensure these are the lowest prices available for these models.
Harmony
Defender 360 Max SIP (Meets New Standards)
Price Details Coming Soon
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Our Review of the 

Harmony Defender 360 Max SIP (Meets New Standards)

More coming soon!

Age

Our recommendation: From 2 years until the seat is outgrown (average 9/10 years old)

Type

A 3-in-1 car seat that can be used forward-facing, in high-back booster mode, and in backless booster mode

When

Preferably after your child has outgrown their rear-facing convertible car seat, but can be used from 2+ years

Buy Now: 
SITS checks manufacturers and retailers daily to ensure these are the lowest prices available for these models.
Harmony
Defender 360 Max SIP (Meets New Standards)
Price Details Coming Soon
See Prices from All Retailers
Michelle sitting in a chair reading a book.

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

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

Buy Now: 
SITS checks manufacturers and retailers daily to ensure these are the lowest prices available for these models.
Harmony
Defender 360 Max SIP (Meets New Standards)
Price Details Coming Soon
See Prices from All Retailers

Videos

This carseat does not have any videos yet.

Car Seat Quick Tour

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Similar Car Seats

This car seat does not have any other versions.

Specifications

Harmony

Defender 360 Max SIP (Meets New Standards)

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.

*Disclaimer: Safe in the Seat contributors are Nationally Certified Child Passenger Safety Technicians, but all reviews and materials reflect our opinions, not those of Safe Kids, NHTSA, or any other organization. We are not liable for actions taken based on this content. Always consult your car seat and vehicle manuals or a certified CPST for guidance.