gore-tex is typically placed between an outer fabric and an inner lining. the material allows moisture to pass easily from one layer through the next, a process known as wicking. this, and a polymer coating that increases the ability of the fabric to repel water, reduce the chance that the wearer will become damp, cold, or a victim of heat loss. in 1989, gore began to license manufacturers to use the gore-tex material and label: however, products must survive rigorous testing in the gore company's rain room, abrasion tests and washing machines to be authorized for market release.