OUR MOST POPULAR SELLER! Get immediate relief from the painful friction that causes rubbing, and blisters on your feet, and heels. ENGO patches immediately reduce friction, protecting your skin. WEAR THE SHOES YOU LOVE! Self-adhesive patches apply to your shoes, not your skin. Trim them to fit any shoes size or shape. STAY ACTIVE AND COMFORTABLE! Don't let painful blisters keep you on the sidelines. Put an ENGO patch in the part of your shoe that's rubbing your foot, and you'll immediately feel the difference.