USPS has supply of cooling neck gaiters for employees "The Postal Service has cooling neck gaiters for employees to wear during warm weather. Gaiters are circular pieces of fabric that sit around a person’s neck and can be pulled up to cover the mouth and nose. Cooling gaiters can be dampened with cold water and wrung out; as the water evaporates, it absorbs heat from the skin of the person wearing it, providing relief. By the end of April, the Postal Service will send a limited supply of blue cooling neck gaiters with the USPS logo to district supplies coordinators for distribution to employees."