Im in a military. I get issued 15 pairs of socks each year in three different styles. But from one year to the next, pairs are never constructed exactly the s

Im in a military. I get issued 15 pairs of socks each year in three different styles. But from one year to the next, pairs are never constructed exactly the same. Then the wear/washing history of each pair divides them even within a given year's issue. I have 43 pairs of socks now in my "work socks" drawer (just counted) but no two are interchangeable. When they come out of the drier i still have to individually match them. Interchangable parts tech has yet to crack this field.