I casually glanced up in the sky above me and about 100ft i saw a craft shaped like a blimp but was almost clear like it was trying look like a cloud i stared at it as moved a few miles an hour till it was out of sight. I thought that couldnt be any plane it was going to slow with no sound it wasnt a blimp it was almost haze or clear colored like it was trying to look like a cloud . No lights no trail just a haze around it.