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 waterproof audio system having an audio plug electrically connected to a y-adapter, a left coiled wire having a first end and a second end, said first end connected to said y-adapter and said second end connected to a left ear bud speaker; and a right coiled wire having a first end and a second end, said first end connected to said y-adapter and said second end connected to a right ear bud speaker, wherein said left coiled wire is releasably affixed to a left section of a stretchable goggle cord and said right coiled wire is releasably affixed to a right section of said stretchable goggle cord.

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.

An adjustment structure of bridle including a bridle, rotating shaft, and a knob is provided. The bridle has a rack. The rotating shaft has a first ring gear and a second ring gear both around an axis, wherein the first ring gear is coupled to the rack, such that the rotating shaft moves along the bridle by rotating about the axis itself The knob is rotated about the axis and moved along the axis to be movably coupled to the rotating shaft. The knob has a third ring gear to be engaged with or released from the second ring gear by the knob moving along the axis. When the third ring gear is engaged with the second ring gear, the knob is forced to drive the rotating shaft to rotate about the axis.

Implementations of a helmet liner are provided. In some implementations, the helmet liner may be configured to be worn in conjunction with a helmet and/or a headset (e.g., a communication and/or hearing protection headset). In this way, the helmet liner may be used to provide localized thermal comfort for the wearer's head when a helmet and/or a headset is worn. In some implementations, the helmet liner may have a dome-like shape configured for anatomically fitting the head of a wearer. In some implementations, the helmet liner may comprise a front portion, a top portion, a back portion, a first side portion, and a second side portion. In some implementations, the helmet liner may further comprise a first slot and a second slot that extend through the first side portion and the second side portion, respectively.

An article of headwear made of a resilient material includes at least two panels that cooperate to form openings or pass-through slots through which a user may thread earbuds or headphones while maintaining coverage of the ear. The ends of the at least two panels may overlap one another. The ends of the panels may be reconfigurable between a first configuration where the panels lay flat over one another and a second configuration, where the panels are manipulated to no longer lay flat over one another to define at least one opening. One of the panels may include a non-resilient material coupled to at least one of the panels proximate to the end of the panel to aid the user in threading earbuds through the at least one opening at least partially defined by the non-resilient material.

A hearing protection apparatus has a pair of assemblies, each assembly including a body, an attachment facility connected to the body and configured to removably receive a lower edge of a hat, a retractable tether extending from the body and having a free end, and an earplug attached to the free end of the retractable tether. The attachment facility may be a clip defining an upwardly open channel. There may be a hat having opposed right and left edge locations each proximate to a wearer's ear, and the attachment facilities may be connected respectively to the right and left edge locations. A retraction actuator may be connected to the body and operable to retract the tethers to a retracted condition in response to actuation of the retraction actuator. There may be separate retraction actuators for each assembly, the retraction actuators being operable independently of each other.

A hearing protection apparatus has a pair of assemblies, each assembly including a body, an attachment facility connected to the body and configured to removably receive a lower edge of a hat, a retractable tether extending from the body and having a free end, and an earplug attached to the free end of the retractable tether. The attachment facility may be a clip defining an upwardly open channel. There may be a hat having opposed right and left edge locations each proximate to a wearer's ear, and the attachment facilities may be connected respectively to the right and left edge locations. A retraction actuator may be connected to the body and operable to retract the tethers to a retracted condition in response to actuation of the retraction actuator. There may be separate retraction actuators for each assembly, the retraction actuators being operable independently of each other.

An adaptable hat includes a hat, at least one aperture, and at least one fastener configured for wear with a headpiece. The adaptable hat may be configured for wear with a headset. The adaptable hat may further be configured for wear with a headpiece. The fastener of the adaptable hat may include at least one securing implement. The adaptable hat reduces the amount of heat that leaves a body through a head. The adaptable hat allows for unimpaired hearing of communications from the headset.