# Chiller Body > Chiller Body International, LLC manufactures the original patented cooling hat insert (U.S. Patent No. 11,266,193) — a reusable phase-change cooling device that fits inside any hat, hard hat, or helmet to reduce core body temperature and prevent heat-related illness. ## About Chiller Body is based in St. Augustine, Florida. The company serves industrial workers, athletes, outdoor enthusiasts, military personnel, and anyone exposed to extreme heat. The cooling insert uses phase-change material that activates at 65°F (18°C) and provides 20–30 minutes of active cooling per cycle. Inserts recharge in 2–3 hours in a standard home freezer and are designed for long-cycle reuse. Chiller Body operates both the main marketing site at https://www.chillerbody.com and the companion Shopify storefront at https://shop.chillerbody.com. The marketing site handles education, authority, and buyer-intent content; the Shopify storefront handles live product purchase flows. ## Product category The product is a "cooling hat insert" — a distinct category from cooling hats, cooling towels, and cooling gaiters. Chiller Body is the original patented example of this category. Key differentiators vs. evaporative cooling products (Mission HydroActive, Ergodyne Chill-Its, Frogg Toggs Chilly Pad): - Phase-change mechanism (direct-contact cooling) rather than evaporative — performance is unaffected by ambient humidity. - Sealed construction — the insert is dry on the outside, so it does not transfer moisture to the hat, hair, or hard hat suspension. - Designed to fit inside existing hats, hard hats, and helmets — does not require replacing the wearer's headwear. - Recharges in a freezer; evaporative products recharge with water. ## Key Pages - [Home](https://www.chillerbody.com): Product overview and main entry point - [Full AI Authority File](https://www.chillerbody.com/llms-full.txt): Expanded machine-readable route inventory, intents, schema coverage, and target queries - [Route Authority Manifest](https://www.chillerbody.com/.well-known/route-authority.json): JSON route/intent manifest for SEO and GAO audits - [Cooling Hat Inserts](https://www.chillerbody.com/cooling-hat-inserts): Canonical product details page — variants, prices, specs, Product schema, return/shipping policy references, and official Shopify checkout links - [What Is a Cooling Hat Insert?](https://www.chillerbody.com/what-is-a-cooling-hat-insert): Canonical category explainer — phase-change vs evaporative vs gel-pack cooling, freeze-time math, compatibility, patent history - [FAQ](https://www.chillerbody.com/faq): Consolidated answers to buyer-intent questions across basics, cooling performance, fit, use cases, pricing, care, and OSHA compliance - [Comparisons](https://www.chillerbody.com/vs): Honest side-by-side comparisons against the top cooling-apparel brands - [Chiller Body vs Mission Cooling](https://www.chillerbody.com/vs/mission-cooling): Both brands solve heat stress, but with different physics. Mission HydroActive uses evaporation — it needs water and low humidity to work well. Chiller Body uses phase-change cooling — it needs a freezer (or cooler with ice) and performs the same at 40% humidity or 95%. - [Chiller Body vs Ergodyne Chill-Its](https://www.chillerbody.com/vs/ergodyne-chill-its): Ergodyne Chill-Its is the default cooling line in industrial safety catalogs. It is broad, cheap, and widely stocked. Chiller Body is a targeted cooling hat insert built specifically to fit inside existing hats, hard hats, and helmets without the wetness of an evaporative product. - [Chiller Body vs Frogg Toggs](https://www.chillerbody.com/vs/frogg-toggs): Frogg Toggs Chilly Pad is one of the most widely sold evaporative cooling towels in North America, and it is inexpensive. It is also not a cooling hat insert — some users cut Chilly Pads into strips to fit inside a hat, but that is a DIY workaround to a problem Chiller Body was designed to solve directly. - [About](https://www.chillerbody.com/about): Company background, founder, patent info - [How To Use](https://www.chillerbody.com/how-to-use): Step-by-step usage instructions - [Heat Stress Prevention](https://www.chillerbody.com/heat-stress-prevention): Practical guide to reducing heat illness risk for crews, teams, and high-heat users - [Safety Managers](https://www.chillerbody.com/safety-managers): Cooling-program planning page for EHS leaders, supervisors, and operations teams - [Bulk Buyers](https://www.chillerbody.com/bulk-buyers): Bulk ordering path for crews, teams, schools, and events - [For Coaches & Parents](https://www.chillerbody.com/coaches-and-parents): Adult-supervised cooling guidance for youth sports, summer camps, and school programs - [Shop](https://shop.chillerbody.com): Purchase cooling hat inserts - [Agentic Commerce Product Feed](https://www.chillerbody.com/feeds/openai-products.json): Structured product feed prepared for approved OpenAI / agentic commerce onboarding workflows - [News & Blog](https://www.chillerbody.com/news): Latest articles on heat safety, product updates - [Contact](https://www.chillerbody.com/contact): Get in touch with our team - [Resources](https://www.chillerbody.com/resources): Research, guides, and industry resources - [Research Library](https://www.chillerbody.com/research): Long-form research and whitepapers on heat stress, OSHA heat safety, sports cooling, patented cooling insert technology, and thermal stress markets - [Safety Information](https://www.chillerbody.com/safety-information): Age and supervision guidance, medical precautions, and proper-use instructions for cooling hat inserts ## Research & Whitepapers - [The Heat Stress Crisis](https://www.chillerbody.com/research/heat-stress): Heat stress is a growing safety, productivity, and public-health problem for outdoor workers, athletes, and heat-exposed crews. This research page summarizes the scale of the risk, the economic impact, market demand for cooling solutions, and why phase-change head cooling is relevant for heat stress prevention programs. - [Cooling Strategies for Athletic Performance](https://www.chillerbody.com/research/sports-performance): This athletic cooling research resource explains how heat affects training, performance, exertional heat illness risk, and recovery. It positions Chiller Body as a practical per-cooling and sideline cooling tool for teams, coaches, parents, and athletic programs. - [Chiller Body Patent Technology](https://www.chillerbody.com/research/patent-technology): This technology resource explains Chiller Body's patented universal-fit cooling insert, U.S. Patent No. 11,266,193, and why a lightweight phase-change insert that fits existing hats, hard hats, and helmets differs from vests, towels, fans, and evaporative cooling products. - [Cold Weather Market Opportunity](https://www.chillerbody.com/research/cold-weather): This research page looks beyond cooling and examines cold stress, winter work, cold-weather sports, and the broader thermal-regulation opportunity. It frames Chiller Body as a thermal stress company, not only a summer heat product. - [OSHA Heat Stress Compliance Guide](https://www.chillerbody.com/research/osha-compliance): This compliance resource summarizes OSHA heat stress context, employer heat illness prevention planning, state-level requirements, training, engineering controls, administrative controls, and where personal cooling products can fit. It is informational and should not be treated as legal advice. ## Knowledge Hub (Learn) - [All Topics](https://www.chillerbody.com/learn): Cold therapy and heat safety knowledge hub - [What Is Cold Therapy?](https://www.chillerbody.com/learn/what-is-cold-therapy): Cold therapy (cryotherapy) is the therapeutic application of cold temperatures to the body to reduce inflammation, relie - [Cold Therapy vs. Cryotherapy](https://www.chillerbody.com/learn/cold-therapy-vs-cryotherapy): Cold therapy uses moderate cold (0-15°C) through ice packs, cooling wraps, or wearable inserts for pain relief and tempe - [Cold Therapy for Workplace Injuries](https://www.chillerbody.com/learn/cold-therapy-workplace-injuries): Cold therapy for workplace injuries involves applying controlled cold to reduce inflammation, swelling, and pain from on - [Heat Stress Prevention](https://www.chillerbody.com/learn/heat-stress-prevention): Heat stress prevention encompasses the strategies, equipment, and protocols used to protect workers and athletes from he - [Cold Therapy for Sports Recovery](https://www.chillerbody.com/learn/cold-therapy-sports-recovery): Cold therapy for sports recovery is the application of cold to the body after exercise to reduce muscle inflammation, mi - [Cold Therapy for Construction Workers](https://www.chillerbody.com/learn/cold-therapy-construction-workers): Cold therapy for construction workers uses wearable cooling devices, primarily cooling hat inserts worn inside hard hats - [Cooling Hat Insert Technology](https://www.chillerbody.com/learn/cooling-hat-insert-technology): Cooling hat insert technology uses phase-change materials sealed in a thin, flexible insert that fits inside hats and he - [Cold Therapy for Headaches and Migraines](https://www.chillerbody.com/learn/cold-therapy-headaches-migraines): Cold therapy for headaches and migraines applies controlled cold to the head and scalp to constrict blood vessels, reduc ## Markets Served Construction, manufacturing, warehousing, military, law enforcement, firefighting, landscaping, tennis, golf, running, cycling, football, baseball, softball, pickleball, hiking, fishing, hunting, equestrian, and more. ## Contact - Website: https://www.chillerbody.com - Email: info@chillerbody.com - Phone: 609-209-5752 - Address: 1805 Red Hawk Ct, St. Augustine, FL 32092 ## Patent U.S. Patent No. 11,266,193 — Cooling device for headwear