How a Kool Tie works
In the middle section of a Kool Tie is a tube of material containing special crystals which soak up water and release it gradually. It cools the body by evaporation rather than by being cold as you might expect. Unlike other products it doesn't need to be refrigerated or frozen. It is the gradual release of the water from the damp tie into the air which causes the cooling effect rather than the temperature of the tie. This means that the tie is more comfortable to wear. Extreme coldness can actually create more discomfort; remember the headaches you got as a child when you ate ice cream too fast.
This cooling effect is continuous and will last for 2-3 days before a re-soaking is needed.
The carotid arteries and major veins run through the neck controlling blood flow to and from the brain and the rest of the body. This makes wearing a tie the most efficient means of staying cool.
Cooling this area also reduces stress and can actually lower the heart rate.
Studies have shown that if this area is cooled, the wearer can achieve a higher level of performance with less perceived effort.