for children 22-110 lbs. / 2 - 8 years

ADVANCED Chase LX Harnessed Booster Car Seat (Dotty Flamingo)



Dotty Flamingo


The Evenflo® ADVANCED Chase® LX Harnessed Booster combines the flexible seating options parents love, with premium ComfortTech™ padding to make longer rides more enjoyable.

  • 2 Seats in 1: Forward-facing Harness to Belt-Positioning Booster
  • Removable Head Pillow: Plush head pillow provides comfort and support for proper head positioning – removable as baby grows
  • Dual Cup Holders: Two built-in cup holders keep drinks and snacks within reach – allows driver to stay focused on the road
  • Buckle Positions: 2 crotch buckle positions to adjust for more seating space as child grows

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Trusted by Millions of Families for Nearly a Century

Made in USA with US & Global Components

Peace of Mind:

Expiration: 6 years

Warranty: 90 days

Returns: 30 days


Installation Manuals: Browse »

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Why You’ll Love it

Chase your dreams...

Ranked a "Best Bet Booster" by the Insurance Institute for Highway Safety (IIHS), the Chase LX delivers style and convenience that parents require for their booster-aged children. The Chase has an innovative headrest design that allows the vehicle belt to self-adjust to your child’s height while in booster mode. The Chase works as both a harness and a belt-positioning booster to accommodate your child through their booster years with comfort and convenience. Additional features include: integrated cup holders, multiple harness and crotch strap positions, upfront harness adjustment, head pillow, machine-washable seat pad.

Product Details

Child Specs (22-110lbs)


  • Weight: 22 - 40 lbs. (10 - 18.0 kg.)
  • Height: 28 - 50 in. (71 - 127 cm.)
  • Age: At least two years of age
  • Fit: Child’s ears are below top of child restraint headrest.


  • Weight: 40 - 110 lbs. (18 - 49.8 kg.)
  • Height: 43.3 - 57 in. (110–145 cm.)
  • Age: At least four years of age
  • Fit: Child’s ears are below top of child restraint headrest.

Product & Shipping Specs

  • Dimensions: 18.5 W x 29.5 H x 18 D (inches)
  • Product Weight: 9.14 lbs.
  • Package Width: 20.25
  • Package Weight: 14.5
  • Package Depth: 19.5
  • Package Height: 28.25


Safety Testing

At Evenflo, we continue to go above and beyond government standards to provide car seats that are tested at 2X the Federal Crash Test Standard.

  • Side Impact Tested: Meets or exceeds all applicable federal safety standards and Evenflo’s side impact standards.
  • Designed and tested for structural integrity at energy levels approximately 2X the federal crash test standard.
  • FMVSS 213: Federal Motor Vehicle Safety Standards for Child Restraint Systems
  • FMVSS 302: Federal Motor Vehicle Safety Standards for Flammability of Interior Materials
  • CMVSS 302: Canada Motor Vehicle Safety Standard
  • CMVSS 213: Canada Motor Vehicle Safety Standard
  • Certified For Use In Aircraft: When used with the internal 5-point harness this restraint meets FAA Inversion requirements for airplane use.
  • Evenflo Temperature Testing: All current Evenflo car seats are tested for product integrity at both high and low temperatures.

Use & Care

Use & Care

Read all instructions and warnings on the product, product labels, and instruction manuals before use. Consult your vehicle owner’s manual to determine proper placement of child restraint in your vehicle and familiarize yourself with your vehicle’s components.

Browse Instruction Manuals »

Cleaning Instructions
  • DO NOT lubricate or immerse in water any part of this child restraint, unless rinsing is permitted
  • Plastic and metal parts may be wiped clean with mild soap and water and dried with a soft cloth. Do not use abrasive cleaners or solvents.
  • Take care not to damage any labels.
  • The harness can be wiped clean with mild soap and water. Allow harness to air dry.
  • Machine wash the seat pad separately in cold water, delicate cycle. Tumble dry 10 to 15 minutes on low heat.
  • Periodically inspect and clean the restraint's crotch buckle of food, liquids, and other debris to ensure proper latching. Place the buckle in a cup of warm water and gently agitate the buckle back and forth. Press the red button several times while the buckle is in the water. Do not submerge the harness strap. To avoid damage to the buckle, do not clean the buckle with soap or detergents and do not use a lubricant.
ADVANCED Chase LX Harnessed Booster Car Seat (Dotty Flamingo) is rated 4.3 out of 5 by 56.
Rated 4 out of 5 by from Great Basic Carseat I have had my Evenflo car seat for a month and a half now. I have taken several long trips with it. One complaint is that they don't have the push anchors, which would make my life easier. The other challenge is that it is terribly uncomfortable for my daughter to sleep in. She LOVES to ride in this car seat around town, to school, and in all of our short trips and general travel. She is 3 and gets really frustrated when she wants to fall asleep, and it is not designed to be comfortable for that. We take enough long trips that we have a second car seat to ensure comfort. Otherwise... I would absolutely recommend it. Those are my only two issues!
Date published: 2015-04-13
Rated 5 out of 5 by from Love this, own 3 of them. My daughter is a very tall 3 year old and she's been in this seat since she outgrew her last one. I love that this seat goes to 110 lbs. We are getting ready to ditch the 5-point and use it as a booster. We've loved this seat so much, we bought 2 more -- one for my husband's truck and one for my mom's car. My daughter has no complaints! People need to stop getting nit-picky about the obvious things... any kid that falls asleep forward facing is going to hang their head in an awkward position ; it doesn't matter which car seat they're in and yes, it will definitely look uncomfortable.
Date published: 2015-04-02
Rated 5 out of 5 by from JUST READ PLEASE. I bought this carseat in February. At the end of February me, my two year old daughter, and my boyfriend were on a trip to Disney world from North Carolina. Now we had the car seat anchored and everything and about 9 am the morning we left, we got into a horrible car accident on the highway. Going 70 and ran into another car that made us flip two and a half times.... The car seat never moved, and my daughter was in perfect shape after the wreck. We're all blessed but this car seat basically saved her life.
Date published: 2016-03-20
Rated 5 out of 5 by from Holds up great in an accident!! I was rear ended by a large SUV at 50 km/hr and my daughter walked away from the accident without a mark on her. This seat kept her safe when we were hit. I even bought the same exact car seat to replace the one that was in the accident. Feels good to know your child is going to be safe incase of an accident. Highly recommended!!! I must add it is much more comfortable for her than prior car seats and it is very easy to get her in and out of it. It is also super easy to install.
Date published: 2014-11-11
Rated 3 out of 5 by from Great until you hit 40 lbs I loved this carseat as a Stage 2 when my daughter was in the 5 point. It is smaller and lighter than the other we had. Now that she is 40lbs and 41" her weigh is above the stage 5 point harness but her height isn't. I wish this carseat would have an overlap for weight like others do so you don't have to switch to booster at 40 lbs. Also the shoulder belt guide doesn't hold the seat belt at all! The minute she moves a little in the seat, it comes out of it. I wish it was better, it is not made at all for a seatbelt to hold in place there.... Not sure how it could work...
Date published: 2015-04-21
Rated 5 out of 5 by from Great car seat! We really like this car seat! My 3 year old son feels like a "big boy" since he is able to climb in and out on his own. He always looks comfortable and enjoys that he can look out the window easily. I LOVE that it is lightweight and installs easy! The cover is easy to get on and off to wash. The straps are a thinner material and seem like they would get twisted easy *haven't had this problem yet*. The cup holders are shallow so you have to be careful what kind of cup you put in them. Over all we enjoy the seat and would recommend it to other parents.
Date published: 2015-03-09
Rated 5 out of 5 by from I've been using this car seat for about a month now and so far I am very happy and satisfied with this seat. It was extremely easy to install correctly and easy to clean (a must for a mom of boys!). My 4 year old son appears to find it very comfortable which is very important. I really like the look of the seat and the cup holders are a huge plus. Most importantly, I feel my son is very safe and well protected while in this seat.
Date published: 2015-04-05
Rated 5 out of 5 by from Fits him perfect! The car seat was a very popular item in our house when we opened it up. After adjusting everything to fit our 5 year old our 1 year was obsessed with sitting in it. Lets just say she wasn't happy when it was installed in the car. The car seat was so easy to install. Our little guy described it as being very comfortable, nice, not to tight and just right!!! The nice thing is that the straps do not get twisted like other brands of car seats. I would defiantly recommend this car seat......
Date published: 2015-02-27
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