Rothco Mock Turtleneck Black S k-S. These long sleeve turtleneck shirts are made of a comfortable 100percent cotton material and the collar and cuffs have added spandex to allow a perfect fit for any individual. This mock T-neck is a great undershirt for cold weather environments. Specifications for Rothco Mock Turtleneck: Manufacturer: Rothco Sleeve Length: Long Age Group: Adults Apparel Fit: Comfort Gender: Male Shirt Style: Mock Turtleneck Fabric/Material: 100percent Cotton Neckline: Turtle Seasonal/Temperature Use: Cold Weather Features of Rothco Mock Turtleneck Material: Spandex Material Specs: Collar And Cuffs Are 95percent Cotton And 5percent Spandex Weather: Cold Weather Package Contents: Rothco Mock Turtleneck Rothco Mock Turtleneck Black Small 3406-Black-S