Adjustment mechanisms for items of headwear are disclosed. An adjustment mechanism for an item of headwear includes a first connection member secured to a first side of an opening formed into a backside of the piece of headwear and a second connection member secured to a second side of the opening opposite the first side. The first connection member includes a first plastic portion having a first spine extending from a first base, and a first moldable portion secured to the first plastic portion. The first spine has a plurality of posts. The second connection member includes a second plastic portion comprising a second spine extending from a second base, and a corresponding second moldable portion secured to the second plastic portion. The second spine has a plurality of apertures. A portion of the posts of the first connection member is selectively received into the apertures.

Woven hats and methods for manufacturing woven hats by using an ultrasonic sewing technology without a sewing thread are disclosed. One illustrative method comprises steps such as: cutting a raw material of a hat crown into a plurality of pieces, then bonding such material in pairs using an ultrasonic sewing machine, applying to seam areas a hot-pressing bonding technology of heat-seal adhesive tape, and/or otherwise completing the manufacturing of the hat crown; manufacturing a visor by using a high-frequency hot-pressing technology; manufacturing a sweatband by using a one-time hot-pressing technology; bonding the hat crown, the visor, and the sweatband with an ultrasonic sewing machine; and fixing a rear fastener or a tail belt through rivets. The disclosed technology makes it easier to realize intelligent and automatic reformation of the manufacturing line.

Methods and apparatus for a head covering may improve air circulation through any suitable head covering. Methods and apparatus for a head covering may comprise a base configured to fit around a wearer's head, a sidewall comprising a plurality of open cells configured to prevent light rays at or above a predetermined angle relative to the passageway of each cell from passing unobstructed through the cell, and a crown configured to close of the interior surface of the sidewall. The minimum depth of each cell may be determined based on the height of the cell, the angle at or above which the light rays are to obstructed, and the angle of the exterior cell opening. The cells may be arranged in the sidewall such that the lower surface of the passageway of each cell is substantially at the same angle with respect to a horizontal plane.

A method for forming thermoplastic composites includes: (a). cutting a thermoplastic film and a cloth material, with the thermoplastic film including a surface layer and an adhesive layer, and with a melting point of the surface layer higher than the adhesive layer; (b). placing the thermoplastic film on a platform of a molding machine, facing the adhesive layer upwardly, and covering the cloth material on the thermoplastic film, with the platform including a plurality of channels defined therein, a plurality of concave and convex patterns arranged on a top surface thereof, and plural pores evenly formed on the top surface thereof and communicating with the plurality of channels; and (c). heating the thermoplastic film by using a heating unit to melt the adhesive layer and to soften the surface layer.

Adjustment mechanisms for items of headwear are disclosed. An adjustment mechanism for an item of headwear includes a first connection member secured to a first side of an opening formed into a backside of the piece of headwear and a second connection member secured to a second side of the opening opposite the first side. The first connection member includes a first plastic portion having a first spine extending from a first base, and a first moldable portion secured to the first plastic portion. The first spine has a plurality of posts. The second connection member includes a second plastic portion comprising a second spine extending from a second base, and a corresponding second moldable portion secured to the second plastic portion. The second spine has a plurality of apertures. A portion of the posts of the first connection member is selectively received into the apertures.