Rothco Athletic Crew Socks<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>100% Cotton</li><li>Authorized for Wear with the Army PT Uniform</li><li>Made of a cotton-nylon blend for performance and comfort</li><li>Large sizes are equal to a sock size of 10-13， and the Extra Large sizes are equal to 12-15 sock size</li><li>These athletic style socks are made in the U.S.A</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41hrpg9wGAL.jpg" noproxy>