Whether for law enforcement or public safety officials, Milspec Mock Turtleneck is the perfect base layer shirt to keep you warm while on duty. The turtleneck design features a 100% cotton main body, and collar & cuffs made from a blend of cotton / spandex; providing you with a comfortable fit around your neck and wrists. Each long-sleeve turtleneck is not only great as an undershirt but as a standalone all-weather shirt as well.