Britax Poplar Convertible Car Seat – Cobalt Onyx


Ready to go with room to grow! The Poplar™ 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. **Due to the size and weight of this product it is available for in store pick up at this time. 

1 in stock

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This car seat accommodates up to 40 lbs (18.1 kg) when installed rear-facing and easily switches to a forward-facing car seat as your child grows (up to 65lbs). The ReboundReduce™ stability bar attaches to the car seat when installed rear-facing to minimize movement in the event of a crash.

ClickTight Installation

Install with Confidence, Every Time!

SpaceSaver Design

Slim outside, spacious inside! 17” (43.2 cm) seat design without compromising on trusted Britax safety & premium comfort.

14-Position, Quick-Adjust Headrest & Harness

Create the proper fit as your child grows

Dishwasher Safe Cup Holders:
Snap out for easy cleaning between car rides

6-Position, Quick-Adjust Recline​:
Help you find the most comfortable fit for your child and the best fit for your vehicle

Patented V-Shaped Tether​:
Staged-release stitched help slow and reduce forward movement during a crash

SafeCell Technology:
Acts as a crumple zone, helping to keep crash energy away from your child

Plush Foam Padding and Fabrics:
For premium comfort and a quiet ride

Safe to Machine Wash & Dry :
Our fabrics are free of FR chemicals, they’re also washer and dryer-friendly to get you back on the road faster


Child Fit Information

  • Rear-Facing Weight: 2.3-18.1 kg (5-40 lbs)

  • Rear-Facing Height: 124.5 cm (49″)

  • Forward-Facing Weight: 10-29.4 kg (22-65 lbs)

  • Forward-Facing Height: 124.5 cm (49″)

Exterior Product Dimensions

  • Product Weight: 12.34 kg (27.2 lbs)

  • Product Dimensions: 52.07 cm L x 43.2 cm W x 59.69 cm H (20.5″ L x 17″ W x 23.5″ H)

Interior Product Dimensions

  • Seat Back Compartment Height: 50.8 cm (20″)

  • Seating Area Depth: 29.21 cm (11.5″)

  • Seating Area Width: 30.48 cm (12″)

  • Shoulder Width: 35.56 cm (14″)

  • Harness Slot Heights: 20.32 cm, 22.1 cm, 23.88 cm, 25.65 cm, 27.43 cm, 29.21 cm, 30.99 cm, 32.77 cm, 34.54 cm, 36.32 cm, 38.1 cm, 39.88 cm, 41.66 cm, 43.18 cm (8″, 8.7″, 9.4″, 10.1″, 10.8″, 11.5″, 12.2″, 12.9″, 13.6″, 14.3″, 15″, 15.7″, 16.4″, 17.0″)