Britax Grow With You ClickTight Harness-2-Booster, CoolFlow Grey

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Grow With You™ ClickTight grows with your child from toddler to big kid. With ClickTight, there’s no stressing or struggling! The seat belt paths are open, clearing the way for quick & confident installation. The steel tensioner automatically tightens the seat into your vehicle, taking care of the hard work for you. Safe to machine wash & dry, the removable car seat cover stays looking like-new, mile after mile. No more hand washing or waiting for it to air-dry. Just quick, easy cleanup so you can keep moving. The fabrics are naturally flame-retardant, which means there’s no need for added FR chemicals. Quickly adjust the 9-position harness & headrest using just one hand for the proper fit as your child grows. Once they’re ready to use the seat belt, the 5-point harness tucks away, transitioning to a belt-positioning booster. Color-coded guides help you route the seat belt through the right paths. Choose from plenty of fun colors to match your child’s unique personality.

  • Harness Mode 25 lbs - 65 lbs, 34” - 49”; Booster Mode 40 lbs - 120 lbs, 44” - 63” 
  • ClickTight® Installation: No stressing or struggling! Unobstructed seat belt paths clear the way for confident installation, and the automatic tensioner takes care of the tightening. 
  • Ventilated Cool Flow mesh fabric improves air flow, keeping baby more comfortable.
  • No Added FR Chemicals: Naturally flame-retardant fabrics with no added FR chemicals.
  • SafeCell Technology acts as a crumple zone, absorbing crash energy to help keep it away from your child. 
  • High-Strength Steel Frame reinforces the seat structure to help keep it stabilized.
  • Patented V-Shaped Tether with staged-release stitches helps slow and reduce forward movement during a crash.
  • 2 Layers of Side Impact Protection: Energy-absorbing shell and foam-lined headrest protect your child’s head, neck, and torso. 
  • 9-Position, Quick-Adjust Harness & Headrest move together using one hand for the proper fit as your child grows.
  • 2-Position Buckle can be moved outward to accommodate your growing child.
  • 2 Recline Positions help you find the most comfortable fit for your child and the best fit for your vehicle. 
  • 4 Cup & Snack Holders keep drinks, snacks, and toys within reach. 
  • Color-Coded Belt Guides make it easy for you to route the seat belt through the right paths. 
  • Removable Cover for cleaning without uninstalling the car seat or taking off the harness.
  • Stay-Put, Soft Comfort Pads keep your child’s neck from rubbing against the harness strap.
  • Nap-Friendly Padding & Fabrics for superior comfort and a quiet ride.
  • Flip-Forward Buckle stays out of the way for easy boarding.
  • 1 Year Warranty - 9 Year Expiration

Recommended Usage

  • Forward-facing Harnessed Weight: 25-65 lbs
  • Forward-facing Harnessed Height: 34" - 49"
  • Belt Positioning Booster Weight: 40-120 lbs
  • Belt Positioning Booster Height: 44" - 63"


  • Product Weight (lbs): 25
  • Child Weight: 25-120 lbs
  • Product Dimensions: 21" x 19" x 25"
  • Seat Area Depth/Width: 15" / 12"
  • Harness Slot Heights: 12" - 20"
  • Buckle Strap Depths: 7" - 9"