Chill Factor Performance is a wholesale and retail supplier in the Ad Specialties Industry since 2004.We sell cooling bandanas,burlap drawstring bags and sublimation tshirts and promotional gifts.Our products are all made to order with limited shelf items with turn around times in 714 working days from the time the approvals and confirmations are approved. We give distributors or marketing advertisement companies the ability to advertise their logos on our products or they can buy as blanks.There's several links for all of your answers on our neck cooling products even the science behind the product we have been a part of since 1991 keeping millions of people cool for decades over and over again.