【Innovate Cooling Technology】Our upgraded neck cooler ring features PCM phase transformation materials. These innovative materials naturally freeze below 28°C (82.4°F), seamlessly transitioning from liquid to solid. Relieve heat and discomfort in the hot summer, delivering an unparalleled cooling experience. 【Eco-Friendly and Reusable】Enjoy refreshing coolness for 30 min up to 120 min(actual duration may vary based on ambient conditions). Rapid freezing in refrigerator, freezer, iced water and breeze of air conditioner. it's a sustainable alternative that reduces environmental impact and promoting sustainability. 【Ultimate Cooling Comfort】Ergonomic design that fits perfectly around your neck, with just the right amount of elasticity to accommodate different neck. Lightweight yet secure, without straining your spine or slipping off during activity. Enjoy unmatched comfort and support while staying cool and refreshed. 【Easy to Use and Portable Cooling】Crafted from soft, flexible, and highly toughness TPU material, our ice ring neck cooler promises long-lasting performance and comfort. Whether you're at home, work, or on the move, its lightweight and portable design ensures you can stay cool effortlessly wherever you are. 【Why Choose Nature Pulito】Explore our new upgrade neck cooler ring, a variety of colors to suit your needs. At Nature Pulito, we are committed to providing products that exceed your expectations. Contact us for the best solution if you're not 100% satisfied. Choose us for all your neck cooler ring needs. Nature Pulito Neck Cooling Tube, Upgraded Instantly Freezes Below 28°C/82.4°F, Reusable & Multi-Functional Portable Neck Coolers for Hot Weather Work Sports Cycling Hiking or Camping