disposable , anti - pathogen , anti - contamination barrier membrane structure characterized with drape , and adapted to be interposed the sole of the foot and a walking surface including gossamer - thin , flexible , pathogen - blocking , sheet - like barrier material having an adhesion face , placeable , adhesively and removably , with light pressure , onto , and fully covering , from a perimetral point of view , the sole of a person &# 39 ; s foot , and low - tack , re - positionable adhesive structure resident on the adhesion face .