Mexar began as a graduate thesis at the University of Pennsylvania and grew from research into practical heat-safety tools shaped with frontline workers. The Philadelphia company develops wearable cooling for people working in demanding outdoor conditions, with its Vapor system tested through pilots in several hot-weather states.
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THERMO-REG IncBaltimore-based THERMO-REG Inc. develops wearable thermoregulation systems that help people stay cool in extreme environments, including climate-controlled headgear for work and military use. Its in-house research focuses on reducing heat-related illness through mechanical and algorithmic heat management, with technology that captures metabolic heat and humidity from the scalp. The company reports four granted patents and one pending, and also licenses its technology or manufactures components for integration into other products.CATONSVILLE, MD
ThermApparelThermApparel makes wearable cooling gear in the USA, using reusable phase-change cooling packs in discreet vests and flexible wraps. Its products are designed for people managing heat sensitivity as well as performers, athletes and others who need dry, portable cooling in humid or dry conditions. Based in Rochester, the company is known for direct, personal customer support and same-day shipping on qualifying orders.ROCHESTER, NY
eztia Ltdeztia Ltd develops HydraVolt™, a proprietary cooling gel bonded directly into performance fabrics to turn apparel into wearable cooling technology. The material activates as body temperature rises, recharges with water rather than batteries or electricity, and is designed to provide washable, full-shift cooling for people working or performing in heat. Its applications span demanding settings such as construction, public safety, and athletics.