Are you asking about on our website or on other websites??
We do sell replacement parts on our web-site under the "Swags" section. There aren't pictures of the straps, lens clip replacements, etc but they are there. See the following page:
There are some dealers that carry the replacement parts but not alot. Maybe that is because the product is still new and they have not had a need yet - idk. But you can purchase all the replacement parts from the link above!!