I found where Rinker was getting the footman loop. It is a sea-dog product, but i have to find how to order it, because sea-dog only sales to business not to the public.
That is not a Rinker part, or installed at the Rinker Factory. Ie non oem
We have the same model/year as @oscar1 - 2014 310 EC - and we have the exact same nylon footman's loop he pictured albeit ours is in better condition probably because of less salt/sun exposure.
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https://www.amazon.ca/Sea-Dog-081261-Down-Strap/dp/B005WKAFC6/
2018 Cherokee 39RL Land Yacht (Sorry...)
https://www.fisheriessupply.com/sea-dog-line/081381-1