A smart cap includes a fixing sleeve, a brim portion, and a sun visor. The fixing sleeve rotatably connects with one side of the brim portion, and the sun visor connects with another side of the brim portion which is relative to the one side of the brim portion. The fixing sleeve includes a voice inputting device, a voice outputting device, a communication device, and a SIM card. A motherboard running programs is configured on the brim portion, and an upper surface of the sun visor has a solar charging battery, a lower surface of the sun visor being a display screen. The solar charging battery provides power for all components of the smart cap via a power management device.

A flip cap which has crown and bill portions, the bill having upper and lower members, at least one of the upper and lower members having a surface capable of displaying info nation secured thereto when the upper and lower members are spaced-apart. The lower and upper bill members are secured in a first position to each other by using a plurality of holes formed in the upper bill member and a plurality of aligned pin members formed in the lower bill member, a lower edge formed on the upper bill member enabling it to engage at least two of the pin members formed on the lower bill member when the lower and upper bill members are spaced-apart, thereby maintaining the lower and upper bill members in the spaced-apart position.

A hat may include a crown, a brim or visor removably attached to the crown, and a strap looping the crown over the brim or visor.

Combination knitted hat and earphone assembly includes knitted hat including double-knitted bucket portion of elastic fabric defining therein head-receiving space for putting onto the user's head, brim portion extended from the bucket portion around the head-receiving space of the knitted hat and two storage pockets disposed inside the double-knitted bucket portion and respectively defined therein storage chamber and opening, and earphone set including two earphone speakers respectively inserted through the openings into the storage chambers of the storage pockets and two transmission wires extended from the earphone speakers and terminating in respective electrical signal input end for connection to control device that is mounted in the folded brim portion outside the double-knitted bucket portion, or external mobile electronic device being carried by the user. Thus, the user can use the earphone set to listen to music when the knitted hat is put on the head to keep the head warm.

A head garment for privacy and methods of using the same. The head garment has a frame including an elongated member, the frame including a loop portion that extends upward and forward from a rear portion that includes a tail, the loop portion including a rim, a veil having a rear portion that is connected to the rear portion of the frame and a front portion that is connected to the rim. The tension in the portion of the veil that spans between the connection to the rear portion of the frame and to the rim provides support for the rim, and the front portion of the veil extends beyond and drapes downward from the rim. The head garment is usable with a ventilation system and/or an electronic device and may be folded for stowing in a container.

A headset for a hydration system is disclosed. The headset includes a fluid conduit adapted to connect to a distal end of a hydration system supply tube, and a magnetic quick connect having an upstream and a downstream coupling member. The upstream and downstream coupling members have a common mating axis and together define a portion of the fluid conduit. The upstream member also includes an off-axis arm that may be rotated about the mating axis without decoupling the coupling members. A headgear mount for use in headsets for hydration systems, such as the disclosed headset, is also provided.

A headset for a hydration system is disclosed. The headset includes a fluid conduit adapted to connect to a distal end of a hydration system supply tube, and a magnetic quick connect having an upstream and a downstream coupling member. The upstream and downstream coupling members have a common mating axis and together define a portion of the fluid conduit. The upstream member also includes an off-axis arm that may be rotated about the mating axis without decoupling the coupling members. A headgear mount for use in headsets for hydration systems, such as the disclosed headset, is also provided.

A smart hat, a method and device for controlling the smart hat are provided. The smart hat includes a brim, and the method includes: acquiring configuration reference information of the brim, and the configuration reference information includes: attitude information of the brim and sunlight irradiation information; acquiring setting parameters according to the configuration reference information; reconfiguring the attitude of the brim according to the setting parameters.

A strap system and a method for wearing the strap system are disclosed. The strap system includes a first flexible segment comprising a first stretchable band; a first semi-rigid segment to conform to a portion of the user's head and comprising a first arc portion to extend from above a user's first ear to below the user's occipital lobe; and a first rigid guide segment connected to the first flexible segment and the first semi-rigid segment. The first flexible segment extends beyond a first end of the first rigid guide segment and the first semi-rigid segment extends from a second end of the first rigid guide segment, the first and second ends of the first rigid guide segment being opposite to each other in a lateral dimension. The first flexible segment is stretchable within the first rigid guide segment along the lateral dimension.

A holding device for a mobile digital multimedia terminal having a holding arm and a fastening device at a first end of the holding arm for fastening to a headgear so that the holding arm extends from the headgear towards a front in the direction of view of a user. A holder for the multimedia terminal is arranged at the second end of the holding arm that is adjustable in reference to the holding arm such that the graphic display is essentially locatable in the middle of a view field. A clamping element with a clamping structure and a counterpart to the clamping element are provided in proximity to the first end to connect the clamping element in a detachable fashion to the holding arm and to fix the holding device in a detachable fashion with the first end of the holding arm in the proximity of the clamping structure.