They wear standard white sweatsocks. Women wear strange socks. Socks that are cut way below the ankles, that have pictures of clouds on them, that have a big fuzzy ball on the back. The women usually end up following men. Then when they reach the age of 11 or 12, they lose interest.
Men never grow out of their obsession with toys.
As they get older, their toys simply become more expensive and silly and impractical. However, the only toys women still keep around when they grow up still require batteries, only few in number and smaller in size. Women are allowed, in fact encouraged, to wear colored underwear. There is no reason for a man to ever, ever, wear anything besides solid white.