🚼 Britax Willow Brook Travel System - Onyx Glacier | Brand New in Box! 🚼

Find your own rhythm as a parent with the Britax Willow Brook Travel System – combining trusted safety, convenience, and comfort in one sleek package.
This all-in-one baby travel system includes the Britax Willow infant car seat, Aspen base, and Brook stroller, designed to grow with your child while making your life easier from day one.


Why Parents Love It:

  • Secure Installation, Every Time:
    The Willow is the only rear-facing infant car seat (4–30 lbs) with ClickTight® technology, so you can install it with confidence — no second-guessing.

  • Perfect Fit for Newborns:
    The RightSize™ system offers multiple adjustment points at the hips, shoulders, and between the legs, so you can dial in the best fit from the very first ride.

  • 4 Ways to Stroll:
    The Brook stroller supports up to 50 lbs and features reversible seating — easily switch between parent-facing and forward-facing as your baby grows.

  • Smooth, Steady Rides:
    Lightweight with all-wheel suspension and no-flat tires for easy maneuvering, whether it’s a walk around the block or an all-day outing.

  • Weather-Ready Comfort:
    Features a UPF 50+ water-resistant canopy with flip-down sunshade, and an infant insert pillow for a cozier fit under 11 lbs.

  • Peace of Mind:

    • Side impact tested to protect your child’s head, neck, and torso

    • SafeCell® Technology manages crash energy

    • ReboundReduce™ carry handle adds extra stability when upright

  • Travel-Friendly Design:
    One-step fold with compact dimensions makes it trunk-friendly and easy to store.

  • Easy Cleaning:
    The car seat cover is machine washable and dryer-friendly — and made with naturally flame-retardant fabrics with no added FR chemicals.


📏 Specs At a Glance:

Car Seat (Willow):

  • Weight: 8.99 lbs

  • Child Weight: 4–30 lbs

  • Shoulder Slot Heights: 5.5" to 11.5"

  • Buckle Depths: 2.25" / 5.5"

Base (Aspen):

  • Weight: 9.09 lbs

Stroller (Brook):

  • Weight: 22 lbs

  • Max Dimensions: 34”L x 23.75”W x 42”H

  • Folded: 16”L x 23.5”W x 36”H

  • Seat Width: 9.5”

  • Shoulder Width: 10”


🎁 What’s Included:

  • Britax Willow Infant Car Seat

  • Britax Aspen Car Seat Base

  • Britax Brook Stroller

  • Parent Cup Holder & Child Snack Tray

  • Large Storage Basket


🚨 Please Note:

  • Brand New in Manufacturer’s Box – Never opened, never used.

  • This travel system is NOT part of any recall.

  • US Certified Car Seat – Please check your country’s car seat regulations before placing an international order.


🚚 CapitalKidz Shipping Policy:

We ship fast! Most orders go out same day to U.S., Canadian, and international locations.

  • Continental U.S.: Ships via UPS

  • Alaska, Hawaii, Puerto Rico: Additional charges may apply — feel free to email us for a shipping quote.

  • APO addresses: Shipped via USPS (additional charge may apply)

💬 Questions? We’re here to help!
Email us anytime — we respond quickly and are happy to assist.


🛡️ We are an authorized Britax dealer. Full warranty applies!