ALL-IN-ONE-BOX SOLUTION: This infant car seat and stroller combo includes the Willow S rear facing car seat (4-30 lbs), the Alpine base, and the Brook+ modular stroller (up to 50 lbs), plus a SafeWash stroller seat insert, a parent tray, and a child snack tray. 4 WAYS TO RIDE: This car seat and stroller combo adapts to your needs with parent-facing infant car seat mode, forward-facing infant car seat mode, parent-facing toddler mode, and forward-facing toddler mode FAST, SECURE, & PARENT-FRIENDLY INSTALLATION: The Willow S infant car seat features ClickTight technology, so you know it can be installed securely in your vehicle on the first ride and beyond ULTRA-PORTABLE: The infant car seat is lightweight and easy to carry, and the Brook+ toddler and baby stroller features a lightweight, durable frame with all-wheel suspension and no-flat tires NATRUALLY FLAME-RETARDANT SAFEWASH FABRICS: The infant car seat cover and stroller insert are safe to machine wash and dry for quick and easy cleanup, and they’re naturally flame-retardant with no added FR chemicals TRUSTED BRITAX SAFETY: The ReboundReduce stability bar on the Alpine base helps minimize movement in a crash, and the car seat carry handle also helps provide stability when used in the upright position; the car seat is side-impact tested according to FMVSS 213a and meets FMVSS 213 frontal impact standards; the car seat is also verified by the Baby Safety Alliance CUSTOMIZE TO BABY’S SIZE: The RightSize system on the Willow S baby car seat provides adjustment points at the hips, shoulders, and between the legs to help you find the perfect fit for your child from the start ONE-STEP FAST FOLD: Save time and trunk space! Stroller closes compactly in one simple step CRUISE IN ANY WEATHER: The infant car seat and baby / toddler stroller both include a UPF 50+ canopy with a flip-down visor. The stroller canopy is also water-resistant to help keep your little one dry. ACCESSORIES INCLUDED: With two cupholders and an upright phone holder, the parent tray makes it easy to keep all your essentials within reach; the child snack tray swings out of the way for easy loading and locks into place when you’re ready to stroll