ENGO Patches prevent blisters by managing friction. Simply remove the white backing and press firmly to your shoe or insole. They are extremely thin which means the shape of the shoe doesn’t change. ENGO patches come in a variety of shapes to accommodate for blisters in different areas of the foot, and are perfect for road & trail running, hiking, walking, skiing, tennis, basketball and football. You can buy ENGO patches at the clinic starting from $15 per patch.