I have two pairs of Ecco shoes that disintegrated into a sticky tar like goo after about a year. These shoes are many years old now but this happened 1-2 years after purchase. Both shoes were hardly used. (10-20 time) The black shoes may never have been used – once or twice if so. They were always stored in my closet – so temperature and humidity controlled. they have just sat in a box in my closet and I was about to throw them in the garbage but I understand this is still happening so I'm letting you know what happens.