Toe and Heel Lugs
So as the components that lock your boot into your bindings. Your toe and heel lugs are a critical part of your ski boots and you need to look after them.
Whether you have replaceable toe and heel plates or your soles are molded you should keep them in good condition to prevent unnecessary ejecting out of your bindings. If you let them wear down too much you are putting extra risk on your safety.
In this video we go through the dimensions needed to comply with the international standard. You can check these dimensions by measuring them with a ruler or set of calipers.
If needed you can add plates to the sole or replace the worn down toes and heels.