Use these general sizing guidelines and the drop-down selection box on the right to choose well-fitting socks.
Size “S”: Fits feet that take shoes sized between 9 and 11.
Size “M”: Shoe sizes 10 to 13
Size “L”: Shoe sizes between 12 and 15
Several branches of the Armed Forces of the United States call for the wear of white, with the determining factor (as expected) being uniform type. In the United States Navy, white socks—manufactured from undecorated, ribbed, or knitted material and of knee- or calf-length—are mandated for wear with all white uniforms by Officers and Chief Petty Officers and are thus a part of their initial clothing allowance. Coast Guard regulations regarding white socks mirror those of the Navy, with their wear required with all white trousers or slacks (except for females wearing flats or pumps, which is a very wise decision from an aesthetic standpoint).
Air Force regulations call for the wear of white or black socks with athletic shoes; their wear is also authorized with the Flight Duty Uniform (FDU), Desert FDU, and they may be worn under black socks provided they are not visible. Marine Corps uniform regulations, on the other hand, do not authorize white socks with any uniform, while the Army’s uniform manual only authorizes tan, green, or black socks. (Note that the absence of “white socks” from the Army uniform regulations might well be unintentional, since the only published version has numerous grammatical and syntax errors and omissions that are yet to be corrected.)
But the Army was not always silent on the issue of white socks. Back in 2015, one of the issues that enlisted personnel almost unanimously rallied around—and were quite vocal about—was the removal of the requirement for white socks with PT uniforms. After much toing and froing between Army officials, the Sergeant Major of the Army, and senior enlisted advisers, the Army lifted the ban on black socks with the PT uniform.