Helps reduce heat exhaustion when exercising or working outdoors, with cool moisture that lowers your body temperature. Fill the Kool Kollar with ice, wrap around your neck, and feel the cooling effect to the head and neck area. Fill the Plastic bag with 8-10 ice cubes, and place inside the pocket. Use the bag to capture melting ice, or forget the bag for a "wet" feel. Wrap the Kool Kollar around your neck, and securely fasten hook n' loop tabs.