The Mystic Get ready to get comfortable! "The Mystic" is Blankens soft calf leather slipper with a goat leather lining that hugs your feet like a cozy sock. Micro rubber sole. Wear your "The Mystic" as a stylish indoor shoe - or with your vacation wear on your time off. It goes as perfeclty with dressy black pants as with denim cut offs or a summer dress.