While the Carets Determination Safety Boot uses a thick and robust 2.0-2.2mm nubuck leather, it is not impervious to damage. And with many work sites disallowing the use of boots with exposed safety toes, it's a good idea to protect the toe leather, and repair it as soon as it's damaged. This will significantly extend the life of your boots.
The product we recommend for this is Tuff Toe.
If you buy Tuff Toe from your local Red Wing store, they will apply it for you for no extra charge, in a few days' turnaround time.
Here is a pair of Carets Determination, before and after applying Tuff Toe:
Thanks to the fine folks working at Red Wing in Corona, CA for doing a great job!
If there isn't a Red Wing store near you, try looking in this directory of Tuff Toe Certified Application Pros, your local shoe repair may offer it as a service, or you can apply Tuff Toe yourself using the video instructions below.