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Poplar S Convertible Car Seat - Slim 17" Design

$349.99

Ready to go with room to grow! The Poplar™ S convertible car seat takes the stress out of moving to the next car seat stage with patented ClickTight® installation and slim SpaceSaver™ design.

Choose Fashion: Ruby Onyx
Safe to machine wash & dry; no added FR chemicals

Why You'll Love It

ReboundReduce Stability Bar

Helps minimize movement in the event of a crash.

A male toddler in a rear-facing car seat with an anti-rebound bar.

SpaceSaver Design

Slim outside, spacious inside: 17” seat design without compromising on trusted Britax safety & premium comfort.

Three children sitting in forward-facing car seats in the back seat of a car. 

ClickTight Installation

Install with Confidence in three easy steps: open, thread & buckle, click it closed.

A woman installing a rear-facing child car seat in a car using the seat belt.

Refined Comfort, Tailored Fit

Premium inserts and padding create an elevated fit & feel.

14-Position, Quick-Adjust Headrest & Harness

Create the proper fit as your child grows.

2 Dishwasher-Safe Cup Holders

Removable for easy cleaning between car rides.

6-Position, Quick-Adjust Recline

Helps you find the most comfortable fit for your child & the best fit for your vehicle.

SafeCell® Technology

Acts as a crumple zone, helping to keep crash energy away from your child.

5-Point Safety Harness

Helps evenly distribute crash energy to keep your child safe.

Naturally Flame-Retardant Fabrics

With no added FR chemicals.

Carbon Steel Frame

Reinforces the seat structure to help keep it sturdy and stabilized.

Features SafeWash® Fabrics

The headrest of a dark grey car seat displaying the Britax logo.

Features SafeWash® Fabrics

  • Our fabrics are free of FR chemicals, and they’re also washer and dryer-friendly to get you back on the road faster.

Expiration: 10 Years
Warranty: 1 year manufacturer limited

Ready to go with room to grow! The Poplar™ S convertible car seat takes the stress out of moving to the next car seat stage thanks to the patented ClickTight® installation and slim SpaceSaver™ design. This convertible car seat accommodates up to 50 lbs when installed rear-facing, allowing your child to ride rear-facing longer. It easily switches to a forward-facing car seat as your child grows, accommodating up to 65 lbs. ClickTight technology provides fully open seat belt paths that are clearly labeled and easy to access, and the automatic tensioner takes care of the tightening. This baby car seat lets you easily adjust the 14-position no-rethread harness and headrest to help create the perfect fit. The removable infant insert helps to properly position infants 22 lbs and under. There are 2 additional premium inserts that help create refined comfort and a tailored fit. The ReboundReduce™ stability bar easily attaches to the car seat when installed rear-facing, helping to minimize movement in the event of a crash. Slim outside and spacious inside, this convertible car seat features 17-inch SpaceSaver™ technology designed to fit 3-across* without compromising on trusted Britax safety and premium comfort. The rear-facing car seat includes a patented SafeCell® crumple zone and a V-shaped top tether to help manage crash energy. Carbon steel frame and belt paths provide strength and stability. The car seat cover fabrics are naturally flame-retardant with no added FR chemicals, and they’re safe to machine wash and dry time and again. *Britax cannot guarantee 3-across installation fitment in all vehicles

Recommendation – Britax strongly recommends:

  • Children ride rear-facing to the highest weight or height specified
  • Children should remain in a child seat with a 5-point harness until reaching the maximum weight or height allowed
  • The top tether be used at ALL times when installing the child restraint forward-facing.


Actual product may vary from image. Britax reserves the right to substitute fabrics or parts and/or make substitutions.

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