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Newborn - 4 yrs

Britax Britax Advocate 70 CS

Britax Advocate 70 CS
Britax Advocate 70 CS - Opus Grey
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  • 5-70 lb. weight capacity
  • Convertible; can be installed rear-facing or forward-facing
  • Side Impact Cushion Technology diminishes side-impact energy by 45%
  • True Side Impact Protection around child’s head and body with energy absorbing EPP foam
  • Click & Safe™ harness indicator provides an audible click when the 5-point harness is properly adjusted to fit your child


About the Britax Advocate 70 CS

When we first eyed the Britax Advocate CS Convertible Car Seat, we immediately recognized some of our favorite features from the Britax product line. And now, Britax has raised the bar even further by engineering a new version of the Advocate: the Britax Advocate 70 CS.


The Britax Advocate 70 CS can be used rear-facing with a child between 5 and 40 pounds, and forward-facing with a child who is at least 1 year old and between 20 and 70 pounds. This means that the Advocate 70 CS can last you up until your child is ready to move into a booster seat. The defining feature of the Advocate 70 CS is the Side Impact Cushion Technology used by Britax — the energy-absorbing cushions on the sides of the Advocate help to reduce the impact from a crash, as well as helping to cushion adjacent passengers.


Like the popular Britax Boulevard 70 CS, the Advocate 70 CS model features the Click & Safe™ harness indicator that clicks when the harness straps are in proper position. This feature helps you make sure that the 5-point harness is secured at just the right fit every time.


The Britax Advocate CS has a quick-adjust headrest and harness, allowing parents to re-position the head restraint and 5-point harness height effortlessly. The True Impact Side Protection™ involves multiple aspects of the seat, offering deep side walls and the energy-absorbing design of the foam head restraint. It also features the cutting-edge Patented HUGS™ cushions or Harness Ultra Guard System that compress upon impact to protect the child as well as the passenger beside her. We love all of the safety features included in the Britax Advocate 70 CS; it's truly a superior seat.


Please note: The energy-management cushions are not "airbags" and do not inflate; rather they add extra protection against side impact crashes.


Britax Advocate 70 CS Specs

Max Weight Capacity:
70 lb.
Min. Weight Required:
5 lb.
Max Height Capacity (in.):
Additional Side Impact Protection:
5-Point Harness:
5-40 lb. (rear-facing), 20-70 lb. (forward-facing)
Weight (when empty):
20 lb.
Manufacturer's Product Number:
Onyx: E9LB91A, Riviera: E9LB91K, Cowmooflage: E9LB91Q, Opus Grey: E9LB9P8
Care Instructions:
Hand wash cover with cold water and mild soap. Line dry.
Made in the USA:

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Videos for Britax Advocate 70 CS

Click to view a video that explains the details behind the design and safety engineering of Britax Car Seats.

Download Manuals for the Britax Advocate 70 CS

  1. Click to download the user guide for the Britax Advocate 70 CS Convertible Car Seat. This manual provides important information about car seat installation, safety guidelines, and how to get the most out of your Britax Advocate 70 CS.

    Download Size: 11.33MB
    - Format: PDF
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