I got [this one from Amazon](Sissy Bar Backrest & Luggage Rack for 04+ Harley Davidson Sportster XL 1200 883 https://www.amazon.com/dp/B008VJY52Q/ref=cm_sw_r_cp_apa_JRDCzbAFA1CB1).

Different from the style you're looking for, but I assume the quality isn't much different.

I'm really satisfied with it. It gives the look I wanted, a place to strap down my enormous lunch box, and the extra security and comfort for my wife while she rides with me.

The way the detachable clips are engaged, there is no way the sissy bar will fall off. Super easy to install too.