Incredible towel which is manufactured from a 50/50 blend of nylon and polyester. Premium cooling towels have 50% nylon content and will cool faster than similar products made from 100% polyester or Dacron. Nylon fibres completely repel water which evaporates much faster when it contacts them. Yeti will cool up to 15 degrees below the outdoor temperature in seconds by harnessing the power of this rapid evaporation. To activate it