US Patent 7950068 Headwear comprising a bill which defines an enclosed space

A headwear assembly, comprising a crown, a bill attached to said crown, and extending outwardly therefrom. The bill comprises an upper bill portion comprising a first periphery and a first closure means disposed along that first periphery, a lower bill portion comprising a second periphery and a second closure means disposed along that second periphery, wherein the first periphery can be releaseably attached to the second periphery by releaseably attaching the first closure means to the second closure means to define an enclosed space between the upper bill portion and the lower bill portion.