A ball cap is provided that has a crown that has a highest crown point located in a vertical direction and a lowest crown point located in the vertical direction. A brim extends forward of the crown in a longitudinal direction of the ball cap, and the brim extends in the vertical direction to a highest brim point. The highest brim point is closer to the highest crown point in the vertical direction than to the lowest crown point in the vertical direction. In other versions of the ball cap, a crown is provided in the ball cap and in yet further versions portions of the crown can be covered by the brim.

A cap with a seamless sweatband is provided and includes a cap body, the seamless sweatband is provided on an inner brim, the seamless sweatband is provided with a sweat-absorbent cotton yarn therein. The seamless sweatband is formed integrally, and fixedly connected to the inner brim of the cap body. The cap with the seamless sweatband is made as a production, which has advantages of convenient processing procedure, lower production costs, higher productivity, more comfort, ventilation, and more convenient use.

A cap with a seamless sweatband is provided and includes a cap body, the seamless sweatband is provided on an inner brim, the seamless sweatband is provided with a sweat-absorbent cotton yarn therein. The seamless sweatband is formed integrally, and fixedly connected to the inner brim of the cap body. The cap with the seamless sweatband is made as a production, which has advantages of convenient processing procedure, lower production costs, higher productivity, more comfort, ventilation, and more convenient use.

Headwear includes a crown of planar fabric panels sewn together in-plane, a brim and a size adjuster of a strip of fabric on a lower portion of the crown, around an entirety of a circumference of the crown or a part of the circumference of the crown. The size adjuster includes, in a space defined by a casing formed by the strip of fabric, a shape-changeable component that, at heat of a predetermined temperature or higher, is configured to soften and extend in a circumferential direction of the crown by a length that is greater than a length by which the shape-changeable component extends at heat lower than the predetermined temperature, in response to a tensile force applied to the shape-changeable component in the circumferential direction of the crown. The fabric panels have a contour and a mesh formed by cutting fabric on a bias.

Headwear includes a crown of planar fabric panels sewn together in-plane, a brim and a size adjuster of a strip of fabric on a lower portion of the crown, around an entirety of a circumference of the crown or a part of the circumference of the crown. The size adjuster includes, in a space defined by a casing formed by the strip of fabric, a shape-changeable component that, at heat of a predetermined temperature or higher, is configured to soften and extend in a circumferential direction of the crown by a length that is greater than a length by which the shape-changeable component extends at heat lower than the predetermined temperature, in response to a tensile force applied to the shape-changeable component in the circumferential direction of the crown. The fabric panels have a contour and a mesh formed by cutting fabric on a bias.

A bill cap or baseball cap has a crown and a bill as conventional. Additional, the bill cap has an elastic panel affixed at an edge thereof to front and left side edges of the bill. The elastic panel is capable of being flipped between an upward position in which the panel extends upwardly from the bill, and a downward position in which the panel extends downwardly from the bill. In the downward position the panel provides additional shading for the eyes of the wearer and/or privacy for the wearer when viewed from the side, thus providing additional anonymity for the wearer such as from paparazzi.

A bill cap or baseball cap has a crown and a bill as conventional. Additional, the bill cap has an elastic panel affixed at an edge thereof to front and left side edges of the bill. The elastic panel is capable of being flipped between an upward position in which the panel extends upwardly from the bill, and a downward position in which the panel extends downwardly from the bill. In the downward position the panel provides additional shading for the eyes of the wearer and/or privacy for the wearer when viewed from the side, thus providing additional anonymity for the wearer such as from paparazzi.

A personal sterilization system, including a base unit defining an air intake, a fan, and a fluid path from the air intake to the fan; at least one UVC light source positioned to illuminate at least a portion of the fluid path with UVC light; a delivery conduit attached to the base unit in fluid communication with the fan; and a dispersion device configured to be worn in proximity to a person's face, the dispersion device defining a fluid inlet attached to the delivery conduit, and at least one fluid outlet configured to disperse pressurized air.

A cap with a seamless sweatband is provided and includes a cap body, the seamless sweatband is provided on an inner brim, the seamless sweatband is provided with a sweat-absorbent cotton yarn therein. The seamless sweatband is formed integrally, and fixedly connected to the inner brim of the cap body. The cap with the seamless sweatband is made as a production, which has advantages of convenient processing procedure, lower production costs, higher productivity, more comfort, ventilation, and more convenient use.

A cap with a seamless sweatband is provided and includes a cap body, the seamless sweatband is provided on an inner brim, the seamless sweatband is provided with a sweat-absorbent cotton yarn therein. The seamless sweatband is formed integrally, and fixedly connected to the inner brim of the cap body. The cap with the seamless sweatband is made as a production, which has advantages of convenient processing procedure, lower production costs, higher productivity, more comfort, ventilation, and more convenient use.