Illumiseen provides a helpful tip for runners to prevent these blisters with a «heel lock» or «lace lock» that creates extra friction between the laces at your ankle. (businessinsider.com)
(Provided one ignores extra frictions like commissions, fees, and taxes.) (moneysense.ca)
The back of the device is coated with a textured grey back panel that helps to create extra friction, making the device easier to hold. (technologyguide.com)