Buff makes eco-friendly neck tube called the Original Ecostretch
Custom Temperature PCM TPU Portable Eco Friendly Ice Cooling Tube for Neck - China Neck Cooling Ring and Reusable Neck Cooler price | Made-in-China.com
Neck Cooler Portable Wearable Cooling Neck Wraps Reusable Neck Cold Ice Pack Easy To Clean for Extremely Hot Weather/Summer Heat