An adjustable liner for use with a protective helmet includes at least one bladder containing open cell foam within the bladder. The bladder is formed by a film that surrounds the foam. The film includes a port that regulates air transfer within the bladder of the liner. When a person dons the helmet having the liner for the first time, the liner's air port is open. When a wearer puts the helmet on his or her head, the foam compresses, thus causing air to escape from within the foam and bladder through the port. The port may then be closed so that air cannot re-enter the bladder or foam, and the foam is retained in its compressed form. When a new wearer wishes to don the same helmet, he or she may release the port to return the foam and bladder to its fully expanded form for a subsequent use.

A shock absorbing system for impact energy dissipation employs removable unitary cells of compressible members in communication with a reservoir and containing a first working fluid. Resilient structural members may be placed intermediate the compressible members to deform responsive to compression to provide both energy dissipation and resilient recovery of the compression cylinders to their uncompressed state.

An article includes a cushioning assembly which has a first bladder element forming a first fluid chamber, and a second bladder element within the first bladder element and forming a second fluid chamber sealed from and within the first fluid chamber. The first bladder element includes an inner surface having a first feature. The second bladder element includes an outer surface having a second feature. The first feature interfits with the second feature such that a first area of the inner surface of the first bladder element is aligned with a first area of the outer surface of the second bladder element at a bonded interface. The second bladder element is exposed to the first fluid chamber away from the bonded interface. A method of manufacturing the article includes interfitting the first feature with the second feature and bonding at the bonded interface.

A protective sports helmet that includes an energy attenuating faceguard connection system, which includes at least one connector that secures the faceguard to the helmet shell without a connection point in the shell's brow region. The sports helmet can be configured as a football helmet to be worn by a player and where the lack of a brow region connection point results in a gap or clearance between the faceguard and the shell that has a functional interplay with the connector upon an impact to the faceguard. The football helmet has a unique collection of helmet shell features that include an arrangement of a raised central band, lateral ridges, frontal vent openings and rear vent openings.

An article of protective equipment includes a one-piece body. The body includes a first region, an edge, and a second region. The first region is formed from a first composite material having a first matrix component and a first reinforcement component. The second region extends between the first region and the edge. The second region is formed from a second composite material having a second matrix material and a second reinforcement component. One of the first reinforcement component and the second reinforcement component has a plurality of first items arranged randomly. The other of the first reinforcement component and the second reinforcement component has a plurality of second items arranged in a predetermined arrangement. The body is configured to protect the wearer from an input load, and the second region is configured to flex under the influence of the input load.

Embodiments disclosed herein are directed to systems for automatically protecting an individual from injuries using one or more sensors, one or more rigid members, and one or more inflatable members associated therewith, and methods of using the same.

Apparatus, systems, and methods are provided for the reduction of head or neck trauma in a living being by mitigating the acceleration experienced by the head, relative to the torso, during a change in motion; for example, creating a neck support that provides improved extension, compression, rotation, and bending properties to the neck in order to control the acceleration experienced by the head. The apparatus can be configured to create a neck support in which acceleration of the head, relative to the torso, is reduced with minimal structure, discomfort, and other potential downsides to the user of the apparatus.

Systems and methods for sensing and monitoring various athletic performance metrics, e.g., during the course of a game, a practice, a training session, training drills, and the like, are described. These systems and methods can provide useful metrics for players and coaches relating to athletic performances in various sports, including various team sports.

The invention includes a protective headpiece and components thereof and methods for their use. Preferred examples comprise a helmet component, a plurality of piers joining said helmet component to a shoulder pad component and an inner hat component permitting the wearer the ability to move the head from side to side and/or up and down within the helmet component without moving the helmet component. The helmet component may comprise a plurality of fluid-filled floating plates or floats on the inner surface thereof to cushion the head against impact during activities including, for example, football, race car driving, military activities and the like.

Systems, methods, and devices for protecting a user head are provided. In one example, a computer-implemented method can comprise receiving, by a system operatively coupled to a processor, a set of data detected by one or more sensor embedded within the helmet device. The computer-implemented method can also comprise adjusting, by the system, a pressure condition within a first set of inflatable cells of the helmet device based on the set of data.