I got the old classic white Nikes that Jimmy Connors wore at the US Open the year he went to SF at age 39. Rainbow colors in achilles area. Don't play in them much, just walk around in them but the heel part of the sole just disintegrated and crumbled apart, now the back half of the sole of the shoe is like a flap and the white filler is like crumbling apart like a cake almost. It's crazy. I can't believe a Nike pair of shoes has completely fallen apart like this. I feel like sending them back to Nike and asking for a new pair. These shoes are years old but the sole is barely used from mostly walking around. Any suggestions of what I should do? Did not save the receipt. THanks.