Light, flexible, all-weather layers.
͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏ ͏ ͏͏ ͏͏ ͏