PCM Cooling Neck Ring – 18°C Self-Activating Cool Collar

Cooling that recharges itself. Made with PCM (phase-change material) that freezes at 18°C, this neck ring re-sets on its own whenever the surrounding air is cooler than 18°C — no freezer required. Wear it for instant, lasting cool during outdoor sports and heat waves.

Highlights

• PCM self-freezes at 18°C — no freezer needed
• Reactivates on its own in cool air
• Simple, practical, and reusable
• Hands-free heat and heatstroke prevention

Specifications

• Technology: PCM (phase-change material)
• Activation temperature: 18°C
• Use: Wear around the neck for outdoor sports