Solved Why cant we shop these Boots

As the webshop says:

You have to use the contact email and suggest it there. Most likely there was no demand for ethereal gore rider boots since they aren't that special so the option wasn't added by default but feel free to send an email so we'll take a look and add the option to choose it for the public.

Keep in mind that requesting very rare items ( such as jeweler's monarch for example) or charms, jewels, etc to be added will result into a negative answer as we don't list those for sale in the webshop.
Feel free to email us if you have any questions.