Rothco Genuine G.I. Wool Watch Cap Men's Olive Drab One Size. S. Department of Defense Specifications. Rothco's military watch caps are quality beanie style watch cap that is perfect for protecting you from the extreme cold weather. Specifications for Rothco Genuine G.I. Wool Watch Cap - Men's: Manufacturer: Rothco Gender: Male Age Group: Adults Hat Size US: One Size Hat Style: Watch Cap Fabric/Material: 100percent Wool Condition: New Country of Origin: USA Seasonal/Temperature Use: Cold Weather Package Contents: Rothco Genuine G.I. Wool Watch Cap - Men's Rothco 5779: Genuine G.I. Wool Watch Cap Men's Olive Drab One Size