Adjustable sweatband for headgear

Claim 1

An adjustable sweatband, comprising: a substantially flat tubular casing fabricated of longitudinally expansible and contractible resilient material, affixed along one edge thereof to a semi-rigid headgear frame with its ends in ovelapping relationship, said casing having an interior surface adapted to engage a wearer's head said casing being substantially smooth and continuous and having an exterior surface normally facing said frame foldable downwardly therefrom: a semi-rigid regulator strap of greater rigidity than said casing passing through and substantially enclosed by said casing and having one free end movable with respect to said casing and one stationary end fixed to said casing, the ends being in overlapping relationship; and cooperating engaging means on said free end and said stationary end of said strap for initially locking said free end to said stationary end in a position to place said casing under tension at an initial minimal circumference with said exterior surface of said casing being positioned adjacent said frame said strap being adjustable to any one of a plurality of circumferentially spaced positions by increasing the circumference of said strap whereby the casing will continue to lie adjacent said frame in a smooth, ungathered condition.