Patent ID: 8020218

Claim:
A head covering comprising a skull portion having a dome shape, a rim, and a visor having an edge facing said rim and expandable means interposed between said rim of said skull portion and said edge of said visor, said expandable means comprising material foldable along a fold line to define first and second portions, the first portion being attached to and extending from said edge of said visor and the second portion extending from said rim of said skull portion, such that said first and second portions are in substantially face-to-face relation and said edge of said visor is substantially adjacent said rim of said skull portion when said material is folded, wherein said expandable means is moveable between an expanded position and a retracted position to move said visor between a position proximate said skull portion and a position remote from said skull portion, and means for securing said expandable means in said retracted position, wherein said expandable means is situated entirely within said skull portion in said retracted position.