Cooling Neck Ring with 24°C PCM — Comfortable and Effective Heat Protection

This neck ring uses NASA-developed phase-change material (PCM) with an ideal temperature of 24°C, providing optimal cooling without overchilling or condensation—unlike 18°C or 28°C models.

It freezes quickly and melts slowly, safely cooling the neck area, a key spot for temperature regulation. Perfect for adults and children to prevent overheating and heatstroke.

Made from durable 93A thermoplastic polyurethane and high-quality German PCM. Available in 3 sizes (S–L) and stylish designs created by Japanese and French designers.

Reliable, battery-free cooling with virtually no condensation.

Weights and Sizes: 1. L: 7.5 oz (212 g), for people with a neck circumference of 14.4 inches (36.5 cm) or larger. 2. M: 5.4 oz (154 g), recommended for people with a neck circumference of 12.6 - 14.4 inches (32 - 36.5 cm). 3. S: 4.8 oz (136 g), recommended for people with a neck circumference of 9.4 - 12.6 inches (24 - 32 cm).