- Cooler Hat
A Wide-brim Hat That Helps Lower Brain Temperature
The Cooler Hat is a patent-pending, all-in-one wide-brim hat designed to help lower brain temperature on even the hottest days. Lightweight, comfortable, and easy to activate with cool water, it provides over one hour of cooling relief while you’re out and about.
Weight
Ultralight
Active cooling
Heat-reducing layer
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HELP US MAKE THE COOLER HAT A REALITY! The hat is designed for everyday wear and features built-in cooling technology that activates with the addition of cold water.
- The Problem
Temperature Optimized
The Cooler Hat is the only summer hat you'll ever need. Styled like a traditional wide-brim hat and crafted from premium athletic-grade fabrics, it delivers exceptional comfort while helping protect you from the heat. Designed by physicians, its multi-layered construction not only provides UV protection but also helps reduce exposure to reflected sunlight. When the heat rises, simply pour cold water into the inside of the hat to activate its built-in cooling-isolation technology. It creates a refreshing, air-conditioned sensation that helps keep you cool and comfortable. Whether you're traveling, at the park, enjoying a theme park, or spending the day outdoors, The Cooler Hat is designed to help maintain comfort, support optimal brain performance, and reduce the risk of accumulative heat-related brain stress. Protect your brain, it’s the only one you have!
- Cooler Hat
Engineered For Performance
Crafted from technical, lightweight fabric with a sleek athletic profile - the Cooler Hat is designed to be your go-to gear for outdoor training and competition.
Brain Cooler
Cooling Coverage Beyond the Head
The Cooler Hat combines the cooling technology of the Cooler Beanie with enhanced coverage and protection. Designed for prolonged outdoor activity, it not only helps keep the head cool but also provides posterior neck coverage, cooling and protecting an area that is particularly exposed to the sun.
The hat offers increased protection from solar and UV exposure. Its dark, tightly woven fabric is intentionally designed to provide enhanced UV protection, while the water-activated cooling layers help offset the additional heat that darker fabrics may absorb.
The Cooler Hat combines the cooling technology of the Cooler Beanie with enhanced coverage and protection. Designed for prolonged outdoor activity, it not only helps keep the head cool but also provides posterior neck coverage, cooling and protecting an area that is particularly exposed to the sun.
The hat offers increased protection from solar and UV exposure. Its dark, tightly woven fabric is intentionally designed to provide enhanced UV protection, while the water-activated cooling layers help offset the additional heat that darker fabrics may absorb.
A posterior opening accommodates hair while allowing the cooling fabric to maintain direct contact with the back of the neck for improved cooling. The wide brim provides additional shade and protection for the face and neck.
The Cooler Hat can also be worn as a comfortable, washable everyday wide-brim hat. For added cooling and comfort on hot, sunny days, simply activate the cooling layers with cool water.
Associated Publications
- “Cognitive Functioning and Heat Strain: Performance Responses and Protective Strategies” (Sports Medicine, Springer): This review explores how heat strain, especially in outdoor activities, affects cognitive tasks such as decision-making, attention, and reaction time. Heat stress significantly impairs cognitive performance, leading to slower reaction times and poor decision-making in sports.
- “Heat, Hydration, and the Human Brain, Heart, and Skeletal Muscles” (Sports Medicine, Springer): This publication focuses on how dehydration and hyperthermia from outdoor heat exposure impact brain function. It highlights how brain circulation and metabolism are altered during intense physical activity in hot environments, affecting coordination and physical performance.
- “Emerging Environmental and Weather Challenges in Outdoor Sports” (MDPI): This review addresses the risks associated with heat exposure in outdoor sports, focusing on cognitive and physical impairments such as decreased coordination and reaction time.
- “Performance in the Heat: Physiological Factors of Importance for Hyperthermia-Induced Fatigue” (Comprehensive Physiology): This study discusses how hyperthermia affects athletes’ physical and mental performance, focusing on fatigue, muscle control, and cognitive impairments such as reaction time and decision-making.
- “Effects of Heat Stress on Cognitive Performance: The Current State of Knowledge” (International Journal of Hyperthermia): This paper reviews the impact of heat stress on mental functions, specifically how prolonged exposure to high temperatures leads to impaired focus, slower reaction times, and poor coordination in athletes.
- “Impact of Elevated Core Body Temperature on Attention Networks” (Cognitive and Behavioral Neurology): This study explores the effects of high core body temperatures on attention and cognitive function, showing how heat-induced cognitive decline directly impacts athletic performance.
- “Thermal Stress Models and Guidelines for Outdoor Sports” (MDPI): This article suggests improvements in current models to better predict and mitigate the effects of heat stress on outdoor athletes. It emphasizes the need for better heat management to prevent impaired cognitive and motor functions.
- “Alterations in Cognitive Performance During Passive Hyperthermia” (International Journal of Hyperthermia): This research focuses on how even passive exposure to heat, such as sitting in a hot environment, can significantly alter cognitive performance, including decision-making and coordination in sports.
- “Psychological Aspects of Military Performance in Hot Environments” (US Army Medical Research): This paper examines how heat affects psychological performance, offering parallels to sports environments where prolonged heat exposure impairs mental and physical abilities such as reaction times and decision-making.
- “Exertional Hyperthermia and its Effects on Physical Performance in Outdoor Sports” (Journal of Sports Science and Medicine): This paper highlights how outdoor athletes experience cognitive decline and physical performance issues like poor coordination and slower reaction times when exposed to exertional hyperthermia.
- Trusted by athletes & outdoor workers
Real results from real-world conditions
“Brain Cooler helps me stay locked in during fast-paced games. My reaction time, focus, and endurance are noticeably better in the second half. It’s now part of my game-day routine.”
Darius T.
Flag Football Player
“I use Brain Cooler before every game. It keeps me calm under pressure, improves my timing at the plate, and helps me recover mentally between innings. I feel more consistent every match.”
Marcus R.
Baseball Player
“Brain Cooler gives me the mental edge during high-intensity play. I stay sharp in transitions, make quicker decisions, and don’t feel drained late in the game like before.”
Ethan C.
Lacrosse Midfielder
- Resources
Latest Articles & Resources
Learn more about heat, performance, and brain health.
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