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Graco Nautilus® SnugLock® Grow™ 3-in-1 Forward-Facing Harness Booster

Graco Nautilus® SnugLock® Grow™ 3-in-1 Forward-Facing Harness Booster

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Product details


The Graco® Nautilus® SnugLock® Grow™ 3-in-1 Forward-Facing Harness Booster Car Seat grows with your child from a forward-facing harness (22-65 lb) to highback booster (40-100 lb) to a backless booster (40-120 lb). Now with Grow technology, this harness booster features a backrest that widens as the headrest rises so your growing child has the best fit and comfort at every stage. The No-Rethread Simply Safe Adjust™ Harness System allows the headrest and harness to adjust together for your convenience, and the 11-position headrest and 4-position recline mean added comfort for your child's best ride. This seat is also equipped with SnugLock® technology for a hassle-free installation in less than one minute using either vehicle seat belt or LATCH. Dual cup holders keep snacks and drinks within reach. This car seat is Graco® ProtectPlus Engineered™ to help protect your child in frontal, rear & rollover crashes.


  • Choose the perfect headrest height from 11 positions to get the safest fit for your child as they grow.
  • 4-position recline keeps your child comfy and helps for a better installation.
  • Harness storage compartment keeps the harness safely stored while in belt-positioning booster mode.
  • Push-button InRight LATCH provides an easy, one-second attachment with an audible click to help ensure secure installation.
  • Steel-reinforced frame provides strength and durability for 10 years of use.
  • 2 easy-to-clean cup holders keep your child's drinks and snacks close at hand.
  • Harness covers and padded armrests for added comfort.
  • Meets or exceeds the child restraint criteria for a frontal crash test under US FMVSS 213.
  • Rear-Impact Tested based on the European Rear-Impact Crash Pulse.
  • Tested to Graco's RollSafe™ testing standard based on the European rollover testing procedure.
  • Tested using approximately twice the impact force required by the US FMVSS 213 car seat safety standard.
  • Tested for structural integrity in extreme hot and cold temperatures.
  • Certified for use in an aircraft in forward-facing harness mode.
  • Be sure to check your local and state laws, as well as AAP and NHTSA recommendations, for car seat usage.
Product dimensions
‎20 in. x 19.5 in. x 27.75 in.
Head rest positions
11-position headrest
Installation Type
Latch Connector, Belt Path
Recline positions
4-position recline mean added comfort for your child's best ride.
Child Minimum Height (Booster)
43 in.
Child Minimum Weight (Forward Facing)
22 lbs
Child Maximum Weight (Forward Facing)
65 lbs
Child Maximum Height (Booster)
57 in.
Child Maximum Height (Forward Facing)
49 in.
Product weight
21.5 lbs
Weight Range (Backless Mode)
40 to 120 lbs
Weight range (Highback mode)
40 to 100 lbs
Graco Nautilus® SnugLock® Grow™ 3-in-1 Forward-Facing Harness Booster
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