Abstract: A 3D printed thermal expansion structure includes a thermoplastic material and a thermal expansion material, wherein the thermoplastic material is in a range from 50 to 90 wt % based on a weight of the 3D printed thermal expansion structure, and the thermal expansion material is in a range from 10 to 50 wt % based on the weight of the 3D printed thermal expansion structure. The thermoplastic material and the thermal expansion material are mixed to form a mixed material, and the mixed material is utilized by a 3D printing apparatus to form a solid object, and the solid object is heated to form the 3D printed thermal expansion structure. A manufacturing method of a 3D printed thermal expansion structure is provided herein.

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: An article of protective gear (e.g., shoulder pads) for protecting an upper body of a wearer (e.g., a hockey, lacrosse, football, or other contact-sport player), in which the article of protective gear is configured to protect a thorax of the wearer and arms of the wearer against impacts (e.g., with other players, boards, pucks, balls, hockey sticks, lacrosse sticks, etc., which may be encountered during hockey, lacrosse, football or another contact sport), efficiently and conveniently, such as by integrating thorax (e.g., chest and shoulder) protection and arm protection into a unitary protective garment (e.g., which may be donned, doffed, and carried as a one-piece garment) while remaining lightweight and providing ventilation (e.g., for enhanced heat management, drying, etc.).

Abstract: A leg pad (e.g., a hockey leg pad) for protecting a leg of a user, in which the leg pad is designed to enhance protection and freedom of movement (e.g., during skating strides), such as by providing flexibility of the leg pad proximate to a knee and optionally an ankle of the user (e.g., for extension and optional retraction of one or more parts of the leg pad) to better follow natural movements of the user's leg (e.g., bending of the knee and optional flexion of the ankle of the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: A leg pad (e.g., a hockey leg pad) for protecting a leg of a user, in which the leg pad is designed to enhance protection and freedom of movement (e.g., during skating strides), such as by providing flexibility of the leg pad proximate to a knee and optionally an ankle of the user (e.g., for extension and optional retraction of one or more parts of the leg pad) to better follow natural movements of the user's leg (e.g., bending of the knee and optional flexion of the ankle of the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: A leg pad (e.g., a hockey leg pad) for protecting a leg of a user, in which the leg pad is designed to enhance protection and freedom of movement (e.g., during skating strides), such as by providing flexibility of the leg pad proximate to a knee and optionally an ankle of the user (e.g., for extension and optional retraction of one or more parts of the leg pad) to better follow natural movements of the user's leg (e.g., bending of the knee and optional flexion of the ankle of the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: A leg pad (e.g., a hockey leg pad) for protecting a leg of a user, in which the leg pad is designed to enhance protection and freedom of movement (e.g., during skating strides), such as by providing flexibility of the leg pad proximate to a knee and optionally an ankle of the user (e.g., for extension and optional retraction of one or more parts of the leg pad) to better follow natural movements of the user's leg (e.g., bending of the knee and optional flexion of the ankle of the user).

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: The invention relates to a leg pad for a hockey player. The leg pad extends along a longitudinal axis and comprises an upper portion, a bottom portion and a band. The upper portion has a knee cap for covering a knee joint of the player. The bottom portion has an upper shell for covering a substantial part of a shin of the hockey player and a lower shell for at least partially covering the shin and ankle of the hockey player. The band extends along part of a periphery of the upper shell and part of a periphery of the lower shell. The band interconnects the upper shell and the lower shell to one another wherein the lower shell is movable relative to the upper shell between a first position and a second position in response to flexion of the ankle.

Abstract: A hockey or lacrosse glove comprising a cuff and a hand receiving portion having a palm sheet, a dorsal sheet extending longitudinally from a proximal end located adjacent the distal end of the cuff to a distal end that is, in use, located generally above the proximal articulation of each finger, and four finger gussets, each finger gusset having a distal end for covering the distal end of the finger. The glove also has at least one protector extending to an end located generally above the distal end of the finger gusset and comprising a single pocket and a padding element contained in the single pocket, the padding element defining at least one flexion zone such that, in use, flexing of the player's hand or finger imparts movement of the padding element.

Abstract: A device (e.g., an article of athletic gear) comprising a post-molded expandable component, which is a part of the device that is configured to be expanded or has been expanded after being molded. This may allow the post-molded expandable component to have enhanced characteristics (e.g., be more shock-absorbent, lighter, etc.), to be cost-effectively manufactured (e.g., by using less material and/or making it in various sizes), and/or to be customized for a user (e.g., by custom-fitting it to the user).

Abstract: The invention relates to a leg pad for a hockey player. The leg pad extends along a longitudinal axis and comprises an upper portion, a bottom portion and a band. The upper portion has a knee cap for covering a knee joint of the player. The bottom portion has an upper shell for covering a substantial part of a shin of the hockey player and a lower shell for at least partially covering the shin and ankle of the hockey player. The band extends along part of a periphery of the upper shell and part of a periphery of the lower shell. The band interconnects the upper shell and the lower shell to one another wherein the lower shell is movable relative to the upper shell between a first position and a second position in response to flexion of the ankle.

Abstract: The invention relates to a leg pad for a hockey player. The leg pad extends along a longitudinal axis and comprises an upper portion, a lower portion and a band. The upper portion has a knee cap for covering a knee joint of the player. The lower portion has an upper shell for covering a substantial part of a shin of the hockey player and a lower shell for at least partially covering the shin and ankle of the hockey player. The band extends along part of a periphery of the upper shell and part of a periphery of the lower shell. The band interconnects the upper shell and the lower shell to one another wherein the lower shell is movable relative to the upper shell between a first position and a second position in response to flexion of the ankle.