A brain injury reduction system provides a protective measure that temporarily or decreases venous drainage out of the intracranial compartment during or immediately before and during a sudden change in acceleration of an individual's head. Specifically, a wearable helmet or other wearable structure of the brain injury reduction system detects an impending collision and determines whether a protective measure is needed. If so, one or more actuation devices provides the protective measure to reduce venous drainage through one or both of the internal jugular veins or paravertebral venous plexus. A first actuation device stimulates a gag reflex or valsalva-like maneuver to reduce venous drainage through the paravertebral venous plexus. A second actuation device can physically compress the internal jugular veins. Thus, the brain injury reduction system minimizes the detrimental impact that may occur due to the sudden change in acceleration of the individual's head.

Disclosed is a mouth guard retaining device comprising a mounting member capable of being mounted to a helmet or facemask and a retaining member capable of retaining a mouth guard. Certain embodiments may also comprise a flexible connecting member attached to both the mounting member and the retaining member. Some embodiments will be formed of substantially a single piece of rubber.

A wearable chassis for a helmet has a shape suitable to be worn on a head of a user and being attachable inside a protective structure having a shape protecting the user's from an external impact. The chassis includes one or more connection ports for connecting an electronic device, a control interface for connecting a control unit, a wiring arrangement for connecting the one or more connection ports to the control interface, and a mounting arrangement for attaching an accessory device to the chassis. Moreover, a helmet including such a chassis and the protective structure having a shape protecting a head of a user from an external impact attached to the chassis, as well as a helmet arrangement including such a chassis and one or more protective structures, each having a shape protecting a head of a user from an external impact, removably attachable to the chassis are provided.

A protective headgear for equestrian use provides a traditional style cowboy hat with protective features to allow it to comply with prevailing equestrian helmet standards. The hat includes interior protective padding in the top of the dome, exterior protective padding below the crown of the dome, and exterior protective padding on the rear of the hat below the brim. The protective padding may be secured to the hat by adhesive, stitching, or mechanical fasteners. A chin strap securement system comprising mutually connectable strap-and-buckle assemblies is optionally provided.

A magnetic quick connect for a fluid delivery system includes a male coupling member and a female coupling member. The male coupling member defines a first outer fluid communication path and includes a first magnetic material. A first inner member is disposed within the first outer fluid communication path and defines a first inner communication path. The female coupling member defines a second outer fluid communication path and includes a second magnetic material. A second inner member is disposed within the second outer fluid communication path and defines a second inner communication path. The male and female coupling members are detachably held together by an attractive force between the first and second magnetic materials such that the first and second outer communication paths are held in fluid communication, and the first and second inner communication paths are held in fluid communication.

A coupling system for safety headwear is provided. Various embodiments of safety headwear accessories, such as a brim guard, are adjustable to couple to various configurations of safety headwear. The brim guard includes a mechanism to detachably couple accessories, such as a face shield, to the safety headwear.

A universal mounting system for a hard hat is provided that includes front and rear mounting locations and auxiliary ridges on either side. A visor is coupled to the hard hat mounting system in such a way as to provide access with minimal interference from the visor to the equipment attached to the mounting locations and ports in the auxiliary ridges. Various embodiments of visors enable modular designs that incorporate different materials and features of the visor. Parallel stretch zones enable folding and holding opposite brims of the visor. Enclosed elastic areas along the inner sides of visor provide user access to auxiliary ridges. Combinations of various accessories on hard hat and how the accessories work together on the universal mounting system are discussed: such as the interaction between visors, earmuffs, face shields, and lamps.

Systems and methods for coupling a clip to a wearable item with a receiver. The methods comprise: receiving the clip's latch structure in the receiver's channel; sliding the latch structure's side members against a channel surface; sliding the latch structure's latch body against the channel's opening edge; bending the latch body by biasing the latch body towards the latch structure's common body portion as the latch body slides against the edge; inserting the latch body and the side members through the channel until at least the free end of the latch body no longer resides in the channel, the latch body automatically unbending when the free end of the latch body no longer resides in the channel; and preventing at least the free end of the latch body from re-entering the channel such that the clip is coupled to the wearable item.

In an aspect, a stress mitigation system is provided for mitigating stresses in a wearer of a headgear configured to apply a load on the wearer that is offset from a center of gravity of the wearer's head to apply a first torque in a first direction on the wearer's head. The system includes a track, a shuttle, and a flexible elongate connector. The track is mounted to either the headgear or a bodywear member and extends generally laterally. The shuttle is movable along the track. The connector is configured to connect between the shuttle and the other of the headgear and the bodywear member. The connector applies a second torque on the headgear in a second direction that is generally opposite to the first direction. When the wearer's head pivots, the shuttle is movable laterally along the track to maintain the connector in a substantially vertical orientation.

A brim shade has a shade element, a clip, and a hinge that joins the shade element and the clip to make the brim shade. The shade element and the hinge combine to create a shade that does not allow the light to get past the brim shade. The brim shade can be adjusted through 360 degree rotation and along the side of a hat to provide protection to the wearer.