Midi pants (Selsdon CR2)

I would normally not dream of offering second-hand underwear on here but these I promise you are completely unworn, and I have given them a wash because they have just been in a drawer for years. Wrong size ordered and never got round to taking them back. Was a pack of 5 black midi pants from Sainsbury's, 95% cotton, 5% estalane, 100% cotton gusset, size 12. Would really feel guilty if I have to put them in landfill!