Provided herein are wearable laser devices that provide an intuitive visual indication of a fixed radius around the wearer. Some embodiments include optical detectors that detect when two or more persons are in proximity with one another. The wearable laser devices may be used in a variety of applications, including, but not limited to, infection control, sports and entertainment.

A cardiopulmonary protective garment for providing limited protection from lightning is fabricated of a waterproof/breathable fabric, such as a Gore-Tex® laminate or equivalent. The garment keeps a wearer's body dry and supports a lightning flashover event when moist or wet on the outside, protecting the cardiopulmonary system. Strips of an electrically conductive fabric, such as Shieldex® or equivalent, can be attached in various arrangements on a posterior outer surface of the garment for igniting a rapid flashover. The conductive strips also provide attractive design details. In some embodiments, an inner heat shielding and flame resistant layer, made of a fabric such as NOMEX® or equivalent, can increase protection against burning caused by lightning and a flashover. Other embodiments may include a grounding strap electrically connected to the conductive strips for carrying charge to a local ground plane, such as the Earth; a cape-like drape of water-absorbing fabric having an electrically conductive element attached to a posterior side in general alignment with the wearer's spine; and a water-proof backpack having electrically conductive elements positioned to promote rapid flashover.

A cardiopulmonary protective garment for providing limited protection from lightning is fabricated of a waterproof/breathable fabric, such as a Gore-Tex® laminate or equivalent. The garment keeps a wearer's body dry and supports a lightning flashover event when moist or wet on the outside, protecting the cardiopulmonary system. Strips of an electrically conductive fabric, such as Shieldex® or equivalent, can be attached in various arrangements on a posterior outer surface of the garment for igniting a rapid flashover. The conductive strips also provide attractive design details. In some embodiments, an inner heat shielding and flame resistant layer, made of a fabric such as NOMEX® or equivalent, can increase protection against burning caused by lightning and a flashover. Other embodiments may include a grounding strap electrically connected to the conductive strips for carrying charge to a local ground plane, such as the Earth; a cape-like drape of water-absorbing fabric having an electrically conductive element attached to a posterior side in general alignment with the wearer's spine; and a water-proof backpack having electrically conductive elements positioned to promote rapid flashover.

An expandable fabric hat liner insert is an apparatus in which the device can be inserted into any standard brim hat and fitted cap style hat, undetected by others, to protect the hair and skin of the user when wearing. The invention can be manufactured by the method of sewing. A semi circular front side and semi circular rear sided is formed from non-woven fabrics. The non woven front and rear side of the semi circular crown is attached by a central flexible fabric between each side. A flexible foldable Protective hair fabrics are sewn to the underside of the apparatus closest to the hair of the user head. A parallel, sewn in grid on the rear portion of the device allows the user to modify the device by cutting the selected grid lines to accommodate various type of hats manufactured with a sewn sweatband bow. The invention demonstrates the ability to allow the device to accommodate fasteners for the purpose of securing the two sides of the non woven fabric together, enabling the expansion and collapsing of the device. The top side of the apparatus demonstrate multiple eyelets for ventilation purposes. This form of the expandable fabric hat liner insert is manufactured to also accommodate a fitted baseball cap style with a closed rear design.

An expandable fabric hat liner insert is an apparatus in which the device can be inserted into any standard brim hat and fitted cap style hat, undetected by others, to protect the hair and skin of the user when wearing. The invention can be manufactured by the method of sewing. A semi circular front side and semi circular rear sided is formed from non-woven fabrics. The non woven front and rear side of the semi circular crown is attached by a central flexible fabric between each side. A flexible foldable Protective hair fabrics are sewn to the underside of the apparatus closest to the hair of the user head. A parallel, sewn in grid on the rear portion of the device allows the user to modify the device by cutting the selected grid lines to accommodate various type of hats manufactured with a sewn sweatband bow. The invention demonstrates the ability to allow the device to accommodate fasteners for the purpose of securing the two sides of the non woven fabric together, enabling the expansion and collapsing of the device. The top side of the apparatus demonstrate multiple eyelets for ventilation purposes. This form of the expandable fabric hat liner insert is manufactured to also accommodate a fitted baseball cap style with a closed rear design.

A wearable garment comprising a customizable and reusable top and a bottom portion are disclosed. The top portion comprises a vest for an upper part and the bottom portion comprises a short for lower part of the body. Both the portions are attached to each other using a plurality of straps which comprise of pouches filled with a phase change material and are in direct contact with the body. The top and bottom portions of the wearable garment have equally divided sheets or pouches to prevent leakage of energy from the body and maintain body temperature for extended working hours. The phase change material can be eutectic ice or humps fat to cool/heat the body by dissipating/absorbing the heat generated by the body. The top and bottom portions and the straps are immersed in a mixture material comprising of a mixture of hydrocarbon chain, water and a salted base.

The present disclosure generally relates to intelligent garments that provide thermal regulation in a variety of environments. The garments may include different layers such as a hydrophobic layer in direct contact with a wearer's skin surface and saturated with an aqueous mixture, a spacer layer, a reflective layer, and an outer hydrophobic layer. The layers of the garment may work together to reduce the metabolic expenditure of the wearer in extreme environmental conditions or during demanding physical activity. A variety of sensors may be displaced throughout the garments so as to enable the collection of data associated with wearers as well as environmental conditions. Wearers may control the thermal balance and other properties of the garments as desired.

The present disclosure generally relates to intelligent garments that provide thermal regulation in a variety of environments. The garments may include different layers such as a hydrophobic layer in direct contact with a wearer's skin surface and saturated with an aqueous mixture, a spacer layer, a reflective layer, and an outer hydrophobic layer. The layers of the garment may work together to reduce the metabolic expenditure of the wearer in extreme environmental conditions or during demanding physical activity. A variety of sensors may be displaced throughout the garments so as to enable the collection of data associated with wearers as well as environmental conditions. Wearers may control the thermal balance and other properties of the garments as desired.

One variation of a method for fabricating a dermal heatsink includes: fabricating a substrate defining an interior surface, an exterior surface opposite the interior surface, and an open network of pores extending between the interior surface and the exterior surface; activating surfaces of the substrate and walls of the open network of pores; applying a coating over the substrate to form a heatsink, the coating comprising a porous, hydrophilic material and defining a void network; removing an excess of the coating from the substrate to clear blockages within the open network of pores by the coating; hydrating the heatsink during a curing period; heating the heatsink during the curing period to increase porosity of the coating applied over surfaces of the substrate; and rinsing the heatsink with an acid to decarbonate the coating along walls of the open network of pores in the substrate.

One variation of a method for fabricating a dermal heatsink includes: fabricating a substrate defining an interior surface, an exterior surface opposite the interior surface, and an open network of pores extending between the interior surface and the exterior surface; activating surfaces of the substrate and walls of the open network of pores; applying a coating over the substrate to form a heatsink, the coating comprising a porous, hydrophilic material and defining a void network; removing an excess of the coating from the substrate to clear blockages within the open network of pores by the coating; hydrating the heatsink during a curing period; heating the heatsink during the curing period to increase porosity of the coating applied over surfaces of the substrate; and rinsing the heatsink with an acid to decarbonate the coating along walls of the open network of pores in the substrate.