Rothco G.I. Wintuck Watch Cap - Mens Olive Drab One Size. I. Wintuck Watch Caps feature a non-allergenic fiber that has been designed not only for comfort but will protect you from extreme cold weather. Specifications for Rothco G.I. Wintuck Watch Cap - Men's: Manufacturer: Rothco Gender: Male Age Group: Adults Hat Size US: One Size Hat Style: Watch Cap Color: Olive Drab Fabric/Material: 100percent Acrylic Adjustability: Adjustable Seasonal/Temperature Use: Cold Weather Country of Origin: USA Features of Rothco G.I. Wintuck Watch Cap - Men's Double layer material for added warmth and protection from the elements Made from a space age non-allergenic fiber Package Contents: Rothco G.I. Wintuck Watch Cap - Men's Rothco 5780: G.I. Wintuck Watch Cap - Mens Olive Drab One Size