Polyester Infant Car Seat and Stroller Combo: The Willow Brook S+ baby and toddler travel system includes the Willow S infant car seat, Alpine base, and Brook + modular stroller, plus a SafeWash seat insert, parent tray, and child snack tray Fit: Willow S infant car seat (rear-facing only): 4 to 30 lbs; Brook + modular stroller: designed for children up to 50 lbs Install with Confidence, Every Time: The Willow S features ClickTight technology, so you know it can be installed securely in your vehicle on the first ride and beyond Premium Raven Black Fashion: Features sleek & stylish black fabric with extra plush infant car seat inserts, peek-a-boo windows on the car seat and stroller canopies, and a secure storage pocket inside the stroller basket Ultra-Portable: The infant car seat is lightweight and easy to carry, and the Brook+ stroller features a lightweight, durable frame with all-wheel suspension and no-flat tires; plus, the stroller closes compactly in one step Four Ways to Ride: Parent-facing infant seat, forward-facing infant seat, parent-facing toddler seat, and forward-facing toddler seat Customize to Baby’s Size: The RightSize system on the infant car seat provides adjustment points at the hips, shoulders, and between the legs to help you find the perfect fit ReboundReduce Stability Bar on Alpine Base: Helps minimize movement in a crash; car seat carry handle also helps provide stability when used in the upright position Washer and Dryer-Friendly: The SafeWash car seat cover and stroller insert are naturally flame-retardant with no added FR chemicals, and they’re safe to machine wash and dry for quick and easy cleanup Protective Stroller Canopy: The water-resistant canopy on the Brook+ stroller is UPF 50+ and has a flip-down sunshade and a large peek-a-boo window for comfortable cruising on sunny or rainy days