"weather shield" refers to a protective covering or barrier that shields you, an object, or a building from the effects of weather such as rain, wind, or sun. It helps to keep things safe and protected from the elements. Full definition
You can purchase separately: car seat adapter, snack tray, adult console weather shield, fleece seat liner, and travel bag. (bestbabydollstrollerreviews.com)
You can also buy a protective weather shield to wrap around your stroller. (howtoadult.com)