The HD 560S uses the same pad mounting system as HD 51-, 55- and 59- series, so anything advertised for those should fit on the 560S.
This looks like the same generic earpads that you can buy on AliExpress, Amazon, eBay and a million other websites. The velour variant actually sounds pretty close to stock, but it's much less comfortable to me; the other variants completely ruin the sound. I'd rather get stock HD 51-/55-/59-/560S pads if possible.