We had a pair of 3D running shoes on a shelf in the closet. These were brand new, never worn. They were old, granted, however the panel that held the goop that was in the soles, disintegrated and the goop ran all over the shelf, and down onto about 10 of my blouses and stuck them together. We were unable to clean them so had to throw everything away. I understand there is only a 60 day warranty, but I do not see why they should disintegrated like that. Just thought you should know what happened