Abstract: An apparatus can include a structural support attachment. The structural support attachment can couple with a vehicle. The structural support attachment can engage with a body. The body can include a lever to couple the body with the structural support attachment to support a tray external to the vehicle.

Abstract: An apparatus can include an adjustment assembly. The adjustment assembly can move an arm of the apparatus. The adjustment assembly can include a first member and a second member. The first member can disengage from the second member. The second member can rotate relative to the first member to move the arm with the first member disengaged from the second member.

Abstract: Provided herein are examples of bead worn supports, such as eyewear, configured to provide passive venting by providing pathways between a lens and a frame and/or by providing a smooth anterior profile to allow a laminar flow of air on an anterior surface of the lens. The pathways through the frame and lens of the eyewear can be configured such that they do not provide a direct path to the eye of a wearer. The headworn supports provided hemin can provide venting while reducing or preventing unwanted light, particles, or other debris from contacting the eye of the user. The headworn supports can also be configured to exhibit excellent ballistic performance.

Abstract: Provided herein are examples of headworn supports, such as eyewear, configured to provide passive venting by providing pathways between a lens and a frame and/or by providing a smooth anterior profile to allow a laminar flow of air on an anterior surface of the lens. The pathways through the frame and lens of the eyewear can be configured such that they do not provide a direct path to the eye of a wearer. The headworn supports provided herein can provide venting while reducing or preventing unwanted light, particles, or other debris from contacting the eye of the user. The headworn supports can also be configured to exhibit excellent ballistic performance.

Abstract: Provided herein are examples of bead worn supports, such as eyewear, configured to provide passive venting by providing pathways between a lens and a frame and/or by providing a smooth anterior profile to allow a laminar flow of air on an anterior surface of the lens. The pathways through the frame and lens of the eyewear can be configured such that they do not provide a direct path to the eye of a wearer. The headworn supports provided hemin can provide venting while reducing or preventing unwanted light, particles, or other debris from contacting the eye of the user. The headworn supports can also be configured to exhibit excellent ballistic performance.

Abstract: Provided herein are examples of headworn supports, such as eyewear, configured to provide passive venting by providing pathways between a lens and a frame and/or by providing a smooth anterior profile to allow a laminar flow of air on an anterior surface of the lens. The pathways through the frame and lens of the eyewear can be configured such that they do not provide a direct path to the eye of a wearer. The headworn supports provided herein can provide venting while reducing or preventing unwanted light, particles, or other debris from contacting the eye of the user. The headworn supports can also be configured to exhibit excellent ballistic performance.

Abstract: Eyewear can be provided that comprises at least one lens, at least one earstem, and a retention assembly that interconnects the lens with the earstem. The retention assembly can include an engagement protrusion attached to the lens and a coupling mechanism attached to an end of the earstem. The coupling mechanism can include a housing configured to receive the engagement protrusion and a lever mechanism being operative to move between open and closed positions for disengaging or engaging with the engagement protrusion.

Abstract: Provided herein are examples of headworn supports, such as eyewear, configured to provide passive venting by providing pathways between a lens and a frame and/or by providing a smooth anterior profile to allow a laminar flow of air on an anterior surface of the lens. The pathways through the frame and lens of the eyewear can be configured such that they do not provide a direct path to the eye of a wearer. The headworn supports provided herein can provide venting while reducing or preventing unwanted light, particles, or other debris from contacting the eye of the user. The headworn supports can also be configured to exhibit excellent ballistic performance.

Abstract: Eyewear can be provided that comprises at least one lens, at least one earstem, and a retention assembly that interconnects the lens with the earstem. The retention assembly can include an engagement protrusion attached to the lens and a coupling mechanism attached to an end of the earstem. The coupling mechanism can include a housing configured to receive the engagement protrusion and a lever mechanism being operative to move between open and closed positions for disengaging or engaging with the engagement protrusion.