Willow™ S Infant Car Seat with Alpine Base

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Ride with peace of mind with the Britax Willow S Infant Car Seat. This rear-facing car seat is side impact tested and includes the Alpine travel car seat base for added convenience.

  • SpaceSaver™ Lightweight Design (only 9.2 lbs)
  • ClickTight® Installation
  • SafeCell Crash Technology
  • RightSize™ 5-Point Harness Adjustment System
  • Quick-Push LATCH Connectors
  • ReboundReduce™ Carry Handle
  • Side Impact Tested
  • Base-Free Stability
  • Washer & Dryer Friendly

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Worry-Free Installation

The Willow S is a rear facing car seat with ClickTight technology so you know it can be installed securely on the first ride and beyond. This 5 point harness car seat features a RightSize system that provides adjustment points at the hips, shoulders and between the legs to create your baby’s perfect fit from the start.

The Alpine base is equipped with a ReboundReduce Stability Bar to help minimize movement for added peace of mind on the go. This seat also features a washer/dryer-friendly SafeWash car seat cover and inserts with naturally flame-retardant fabrics.

Customized Size

RightSize™ system provides adjustment points at the hips, shoulders & between the legs; Create your baby’s perfect fit from the start!

Install Confidently

The Willow S is the only infant car seat with ClickTight technology, ensuring a safe and secure installation.

Side Impact Tested

Helps protect your child’s head, neck and torso for total peace of mind.

Stability Bar

The Alpine car seat base features a ReboundReduce Stability Bar to help reduce movement during car rides.

Infant Insert

This rear-facing car seat is designed to provide a more comfortable and customized fit for newborns under 11 lbs.

Protective Canopy

The car seat canopy is UPF 50+ and has a flip-down visor for comfortable riding.

Washer/Dryer Friendly

The SafeWash car seat cover and stroller insert only are naturally flame-retardant and safe to machine wash and dry.

Raddl Reviews

  • February 19, 2024
  • Taylor E Raddl Verified
  • Recommended
Child Comfort
Product Functionality
Product Safety Features
Product Quality
Product Value

Wow I’m impressed!

This is for our third baby.

THIS— what a breeze to install, has so much space and baby is so comfy. I really love this seat. The Willow is such an awesome seat! I wish it would’ve come out sooner. It’s roomy, lightweight and was simple to install. Brutal does it again!

Product Specs

Available Colors

Graphite Onyx, Jade Onyx

Product Weight 9.2 lbs.
Product Dimensions 28.1 x 16.9 x 24.11 inches

Additional Info

Alpine Base Weight 10.2 lbs
Minimum Child Weight 4 lbs
Maximum Child Height 32 inches
Harness Positions 4
Harness Slot Heights 5.5" / 7.5" / 9.5" / 11.5"
Buckle Strap Depths 2.25" / 5.5"
Seat Area Depth/Width 12" / 9.5"
Shoulder Width 10"
Car Seat Expiration 6 years
Warranty 1 Year