NPTU Windsor S1C (U.S. Navy) Color Changing Mug 11oz

The NPTU Windsor S1C is a naval product, designed specifically for use by the United States Navy. This item likely refers to a piece of equipment or accessory that meets the stringent requirements of the U.S. Navy, given the "U.S. Navy" part in its title. The specific nature and function of the NPTU Windsor S1C are not explicitly stated in the title, but it is safe to assume that further details about the product can be found elsewhere, such as in its description or accompanying documentation.