I bought three packages of these (not on Amazon) so as to have at least one pair for each day of the week.  After having them for a year, every single pair wore holes in the crotch areas on both sides.  I work outside and during the hot summer months, these do not wick away sweat very fast and the result, shall I say, stinks.  They are also a little on the tight side.  But all is not negative.  On a positive note, they have kept their elasticity well and the legs do not ride up.  Still, I'm in the process now of looking for something better.