"The brainchild of two female entrepreneurs who met during their MBA program at Northeastern University (my alma mater!), blistabloc’s reactive shoe insert, b.bloc™, was created to prevent blisters BEFORE they even occur. The discreet clear plastic strips, which come in a pack of a four, get taped on the interior back of your casual sneaker, heel, boat shoe, or flat in the spot(s) where you are most apt to get irritation. b.bloc’s unique material properties mold to your shoe and react to movement, temperature and pressure, working to reduce the discomfort caused by the friction of your foot and shoe rubbing together."
Read more at: http://www.the-alyst.com/style-spotlight-blistabloc/