Do you have a favorite pair of shoes that is beginning to wear but you love them too much to stop wearing them or get rid of them? Made to eliminate the premature death of shoes due to holes. Shoes often wear out from the inside out. The parts of your shoes that seem to wear out the fastest can be protected from the inside and keep you from spending so much money replacing those shoes. By being able to wear the same shoes for longer, you are also helping to save the environment. Made for all types of shoes including running shoes, basketball shoes, athletic shoes, dress shoes, boots, etc. to prevent heel holes. Soft & flexible. If put in new shoes, will keep heel holes from even having a chance to get started.