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Ally., Pennsylvania -⭐⭐⭐⭐⭐Nice a Hot day! Reviewed in the United States‡ş‡¸on July 25, Ashley., New York City ⭐⭐⭐⭐⭐Cools without getting in the way! Reviewed in the United States‡ş‡¸on July 30, Experience instant relief asneck coolers efficiently circulate air around your neck, providing asoothingandcooling sensation. Perfect forstaying cool during outdoor activitiesor beating the heat at home. Embrace the efficacy of neck coolers and stay fresh, comfortable, and composed even on the hottest days. Discover anew level of refreshing comfortwith our innovativeNASA Reusable PCM Ultra Cooler.Powered by advancedPhase Change Material (PCM) technology, this neck cooling device providesinstant relief and temperature regulationlike no other. Utilizing a solidPCM material, andTemperature Control Fiber, our Ultra Cooler swiftlyabsorbs excess heat,delivering a refreshing burst of coolness to your neck. With aconstant temperature of 15 degrees Celsius(59 degrees Fahrenheit), it ensures unparalleled comfort in any environment. Crafted with ice crystal purified water pigment,our cooler keeps you cool without the worry of ice burns. And for continuous use, simply refrigerate it it’s always ready for action. Dr. Sarah Reynolds, MD, PhD,Aerospace Medicine Specialist-As a medical expert, I wholeheartedly recommend The NASA Reusable PCM Ultra Cooler. Thisspace-grade technology, backed by rigorous clinical studies, deliversrapid and reliable cooling reliefin any environment.With solid PCM material, ice crystal purified water pigment, and temperature controlled fiber, it ensures safe and efficient cooling without ice burns. Its ergonomic designers unmatched comfort. love how lightweight and easy it is to carry around in my backpack. It’s like having a refreshing breeze follow me wherever I go! Such a travel essential! A refreshing breeze on my global adventures. Love it! Emma., Oklahoma Whether I’m in theice, running errands, or chasing after my little one, the Ultra Cooler keeps me feeling cool and collected. It’s a must-have for any busy mom like me who wants to stay cool and conquer the day with ease. Kelsey., Manhattan Whether I’m lifting heavy or going all-out in a cardio session, this cooler keeps me feeling comfortable and focused. It’s my secret weapon for tackling tough workouts without overheating. It’s a pro athlete’s edge! Neck cooling boosts my performance. Awesome! Frank., Mississippi 1 x NASA Reusable PCM Ultra Cooler