optiquest is referring to a skirt around the bottom of the canvas tent ends.
They had them on the older snap and bungee tent ends but disappeared when they went to the pre-attatched tent ends.
From what I've seen, the newer tent ends are almost a one piece enclosure and don't seem to need the skirts.
I'm sure some will clarify it better, since mine has snap and bungee tent ends.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC