Evaporative Cooling Neck Ties Scarf Ice Cool Scarf Ice Cool Bandana Keeps you COOL! Yes, YOU ARE COOL! Easy to Use: Just Soak in water for 3-5 minutes Ideal for All Outdoor Activities, high temperature work-space, even a First Aid Application Size: 35" inches long by 2" inces wide Until all water is evaporated, it keeps you cool. Once all water is gone, just soak in water again