Graco Baby Nautilus 65 LX 3-in-1 Harness Booster Car Seat Child Safety

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  • Regular price $179.99

Graco Baby Nautilus 65 LX 3-in-1 Harness Booster Car Seat Child Safety

The top-rated Graco Nautilus 65 LX 3-in-1 harness booster goes the distance, from toddler to youth, to help keep your growing child safe. It secures your child in a 5-point harness from 20-65 lb, converts to a belt-positioning booster from 30-100 lb, and becomes a backless booster seat from 40-120 lb. Its Simply Safe Adjust Harness System allows you to adjust the harness and headrest together, with no rethreading. You’ll appreciate the ease of the fuss-free harness, for easy in and out, while your travel partner enjoys the comfy body insert, personal cup holder, and storage compartment.


3-in-1 harness booster helps protect your child, from toddler to youth
Harness Booster (22 – 65 lb), highback booster (30 – 100 lb), and a backless booster (40 – 120 lb)
Simply Safe Adjust Harness System headrest and harness adjust together
Be sure to check you're local and state laws, as well as AAP and NHTSA recommendations, for car seat usage
Engineered & crash tested to meet or exceed the US standard FMVSS 213
Keeps your child in a booster longer - up to 120 lb.
Fuss Free harness storage to get your child in an and out easily
Removable body support helps keep your child comfy
Steel-reinforced frame provides strength and durability
3-position recline helps keep your growing child comfy
Rigorously crash tested to meet or exceed U.S. safety standards
Side Impact Tested* *In addition to meeting or exceeding all applicable US safety standards, the Nautilus 65 LX has sides impact tested for occupant retention solely with the built-in 5-point harness system
One-hand, 5-position adjustable headrest easily adapts for your growing child
EPS, energy absorbing foam for effective impact management


Car Seat Depth: 18 in
Car Seat Width Outside: 20 in
Car Seat Height: 28 in
Car Seat Weight Without Base: 20.52 lb

Care and Maintenance

Machine-washable seat cushion
Metal and plastic parts may be cleaned with mild soap and cool water
Buckle may be cleaned with a damp cloth
Harness straps may be spot cleaned.

Recommended Use

5-Point Harness Mode
Weight: 22-65 lb
Height: 27-49
High Back Booster Mode
Weight: 30-100 lb
Height: 38-57"
Backless Booster Mode
Weight: 40-120 lb
Height: 40-57"