Baby > Car Seats > Best Sellers

Price: $139.00 ($189.99)

(as of 2014-11-20 10:53:48 PST)

You save $50.99 (27%)

FREE Shipping

Usually ships in 24 hours

Category: Baby

Rating: 4.6 / 5.0 (1,298 votes)

Released: 2008-02-25

#74 in Baby

Buying Choices

9 new from $122.01

(as of 2014-11-20 10:53:48 PST)

Graco Nautilus 3-in-1 Car Seat, Matrix by Graco

+ Slide
- Slide

Product View

See larger image and other views (with zoom)

Product Screenshots

Product Details

Graco Baby
Recommended Age
1 – 8 years

Check All Offers Add to Wish List Add to Baby Registry Customer Reviews


  • 3-in-1 multi-mode Car Seat for longer use 20 pounds to 100 pounds
  • Extended 5-point harness for children 20-65 pounds
  • Converts to High-back belt positioning booster for child 30 pounds to 100 pounds
  • Converts to backless booster for child 40 pounds to 100 pounds
  • Steel reinforced frame for durability
  • 3 in 1 multi-mode Car Seat for longer use 20 pounds to 100 pounds
  • Extended 5-point harness for children 20 to 65 pounds
  • Converts to High back belt positioning booster for child 30 pounds to 100 pounds


The Graco Nautilus Car Seat is a 3 in 1 multi mode car seat for children 20 pounds to 100 pounds. This is the last car seat you will need to buy for your child. The Nautilus is ideal for your children from one to ten years old. First, it is an extended 5 point harness seat for children 20 to 65 pounds that features an easy to install system with a lock off buckle for easy secure installation. Second, it works as a high back booster for children 30 pounds to 100 pounds, and finally as a backless booster for children 40 pounds to 100 pounds. The Nautilus Car Seat has a steel reinforced frame for durability, and has a 3 position recline for proper installation and comfort. The car seat offers easy access storage and cup holders for your childand#8217;s enjoyment. Nautilus transforms into three modes to go the distance.

Editorial Review

Top-rated by leading consumer publications, the Graco Nautilus 3-in-1 Car Seat grows with your child by offering three forward-facing positions. Designed for children 20 to 100 pounds, the Nautilus transitions from a harness booster to a highback belt-positioning booster and finally to a backless belt-positioning booster seat. This LATCH-equipped seat is outfitted with reinforced steel, and features a three-position recline and height-adjustable headrest to help make every ride more enjoyable.

callout top with logo

Nautilus 3-in-1 Car Seat
At a Glance:
  • Converts from harnessed booster seat to highback and backless booster
  • Side-impact tested with EPS energy-absorbing foam and a steel-reinforced frame
  • Height-adjustable headrest and three-position recline keep your child comfortable
  • Contoured, padded armrests feature an integrated cup holder and storage pockets
  • Open-loop belt guides for correct vehicle belt positioning in belt positioning booster mode
Age/Weight Requirements:

Five-point harness use from 20 to 65 pounds; high-back booster from 30 to 100 pounds; backless booster from 40 to 100 pounds


Limited 1-year warranty

Nautilus 3-in-1 Car Seat Product Shot

This seat is seat LATCH-equipped to work with your vehicle's LATCH system for easy installation. .

#1 Logo
Graco's Commitment to Safety

In addition to meeting or exceeding all US safety standards, the Nautilus 3-in-1 car seat has been side impact tested for occupant retention with the built in 5-point harness system and in high back belt positioning booster mode to keep your child secure in a side-impact collision. This car seat features EPS, energy absorbing foam for effective energy management in the event of collision.

The Nautilus has been tested for structural integrity at both high and low temperatures. Because the interior temperature of your vehicle can vary significantly by season, it is important to maintain the structural integrity of the car seat when subjected to these temperature extremes. Its color coded open-loop belt guides also help ensure your vehicle belt is properly routed to secure your child.

3-in-1 Design Grows with Your Child

The Nautilus is designed for children from 20 to 100 pounds, allowing five-point harness use up to 65 pounds. As your child grows, the seat transitions into a highback belt-positioning booster, then finally into a backless belt-positioning booster for a comfortable fit up to 100 pounds.

Nautilus 3-in-1 Car Seat Lifestyle ShotNautilus 3-in-1 Car Seat Lifestyle ShotNautilus 3-in-1 Car Seat Lifestyle Shot
Comfort and Fit Features Developed With Your Child in Mind

The Nautilus adapts to keep your child comfortable, offering a three-position recline and a height-adjustable headrest you can easily move with one hand to accomodate your child's needs.

Contoured, padded armrests offer additional comfort on long rides. The integrated cup holder and storage pockets for snacks and small toys keep your child's favorite things always within an arm's reach.

LATCH Compatible for Easy Installation

Nautilus makes it easy to secure your child properly thanks to open-loop belt guides that help you correctly position the vehicle's seat belt.

The seat is also LATCH-equipped to work with your vehicle's LATCH system for easy installation or can be installed using your vehicle's safety belt giving you the confidence of proper installation.

Machine-Washable Cushion and Cover for Easy Cleaning

The Nautilus features a machine-washable cover and seat cushion. Metal and plastic parts can be washed with mild soap and water, while the buckle and harness strap clean up quickly with a damp cloth.

The Graco Nautilus 3-in-1 Car Seat is backed by a manufacturer's limited one-year warranty.


The Nautilus 3-in-1 measures 29 by 20 by 22 inches (H x W x D) and weighs 26 pounds.

What's in the Box

Graco Nautilus 3-in-1 Car Seat.

Matrix Header Logo

Weight in lbs.
























Infant seats
(used Rear-Facing only)


SnugRide 30

SnugRide 35


4———— REAR-FACING ————30

4————— REAR-FACING —————35

Convertible seats
(used Rear-Facing or


Classic Ride 50

My Ride 65

My Ride 65
with Safety Surround

5———– REAR-FACING ———–30

4——————- REAR-FACING ——————-40
20——— FORWARD-FACING ———50

5—————- REAR-FACING —————–40
20————— FORWARD-FACING —————65

4——————- REAR-FACING ——————-40
20————— FORWARD-FACING —————65

All-in-One seats
(used Rear-Facing/
Forward-Facing or as a
Belt-Positioning Booster)


5—————- REAR-FACING —————-40
20————— FORWARD-FACING —————65
30——————– BELT POSITIONING BOOSTER ——————–100

Harness Booster seats
(used Forward-Facing only)


20————— FORWARD-FACING —————65
30——————– BELT-POSITIONING BOOSTER ——————–100

Booster seats
(used Forward-Facing only)

Highback TurboBooster

Backless TurboBooster

30——————– BELT-POSITIONING BOOSTER ——————–100


Trademark Information:




Graco Two Piece Harness Tie in Grey
Columbia Sportswear Snowtop II Bunting, Boa Lumberjack Plaid, 18 Months

Similar Products

Summer Infant DuoMat for Car Seat, Black
Munchkin Backseat Organizer, Black
Evenflo Amp High Back Booster Car Seat, Carrissa
Seiko Women's SUP228 Analog Display Japanese Quartz Two Tone Watch
InStep Police Pedal Car


Become a fan of Your #1 Source for Baby Products on Facebook for the inside scoop on the latest and best selling baby products.