Environmental Friendly Material: Crafted from 0.3mm thick TPU, this cooling neck ring is eco-friendly and safe for direct skin contact. Customization Option: Offers customization with a logo, making it a unique and personalized product for brands and teams. Consistent Cooling Effect: The PCM technology ensures a constant temperature of 28/18 degrees, providing lasting comfort during outdoor activities. Bulk Discounts Available: Enjoy cost savings with bulk purchases, perfect for businesses looking to stock up on this essential item. Quick Freezing Process: Effortlessly achieve a frozen state in the refrigerator, ready for immediate use without fogging or water droplets.