Britax Allegiance Convertible Car Seat

New model, new lower price!

The Britax® Essentials™ Allegiance is safe and comfy for your little one while you’re on the go. Britax SafeCell Impact Protection is a system of patented safety features that provide advanced protection. A foam-lined shell provides side impact protection in the event of a crash. Plus, installation is easy using lower anchors that lock into place with a click and are released with the push of a button.

Features we love:

  • Side Impact Protection includes a deep, foam-lined shell and adjustable head rest provides side impact protection to help surround your baby in safety.
  • SafeCell® Impact Protection a system of patented safety features including SafeCell® Impact-Absorbing Base, Impact Stabilizing Steel Frame, and a rip-stitch top tether to help keep baby safe and sound.
  • 10-Position Harness easily adjusts to make it easy to keep proper harness positions for your growing baby.
  • LATCH Connectors lock into place with a click, and are released with the push of a button.
  • Built-in lock-offs make seat belt installation a breeze.
  • Easy-remove cover allows you to clean it without having to remove the harness. We love this feature!
  • 3-position recline adjusts for your child’s comfort and the safest installation angle.Easy-buckle system keeps buckles and straps out of your way when putting baby in the car.
  • Removable body pillow ensures even small newborns t snugly in the seat.

Product Size

Car seat measures 21" L x 18.5" W x 26" H.

For What Size

Use from 5 - 40 pounds rear facing, 20 - 65 lbs* forward facing. Child must be on a standing height of 49" or less.


Read how to care for your car seat here


Limited 1 year warranty information can be found here.


Product Origin: Made in

About Britax
At Britax, we believe family life should be lived without limit. A world where parents and children are free to make the most of every moment together. And we think it's our responsibility to make this happen. By driving safety standards to ensure children have never been better protected on the move. By pushing boundaries in smart design to make life in motion run smoothly. By extending a helping hand – or two – and always celebrating the journey.

We've been leading the way in child safety technology for more than 70 years. Always innovating, always focusing on what's best for the child, always going beyond 'good enough'. From Europe's best-selling car seat brand, we've become one of the brands most trusted by American families since we launched here in 1996.

Since then, we've revolutionized side impact protection, transformed safe seat installation, and introduced a range of smart strollers designed around the changing needs of today's families.

Our ongoing, open-ended conversation with parents is complemented by our work with car manufacturers, government bodies, and child passenger safety experts – collaborating, advising and using our industry-leading testing facilities to continually find ways to give parents the products and the reassurance to live family life without limit.

Because we believe in helping every parent and every child find their family freedom.

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