US Patent 6941581 Adjustable cap

An adjustable cap uses a coarse sizing system such as providing the dome of the cap with a pair of straps and placing a buckle on one of the straps and mating the other strap within the buckle, providing cooperating hook and loop material on each strap, providing cooperating prongs and corresponding receptacles on the straps, etc., which sizing system is static and provides the overall coarse sizing for the cap. A fine sizing system has one of the straps being made from two sections with one of the sections being made from an elastic material. This latter system provides continuous fine sizing adjustments.