Britax Willow Brook S+ Travel SystemFind your own pace as a parent with the Britax Willow Brook S+ Baby Travel System. This infant car seat and stroller combo include the Britax Willow car seat, Aspen car seat base, and Brook S+ baby stroller. The Willow S is the only rear facing car seat with ClickTight technology, so you know it can be installed securely on the first ride and beyond. The RightSize system provides adjustment points at the hips, shoulders, and between the legs to help