See these...
https://www.alibaba.com/trade/search?fsb=y&IndexArea=product_en&CatId=&SearchText=dr.+dre+beats+headphone+cushion+replacement
https://www.amazon.com/Replacement-Wireless-Bluetooth-Headphone-Cushion/dp/B00L61YXI2
Other colors too for the aboe....
http://www.ebay.com/itm/Replacement-Ear-Cushion-Pads-Ear-Cups-For-Beats-by-Dr-Dre-Studio-2-0-Wireless-/262348450749
Headband Cushion
https://www.amazon.com/Replacement-Headband-Wireless-Bluetooth-Headphones/dp/B00M9XIB1Q/ref=pd_sim_23_2?_encoding=UTF8&psc=1&refRID=JPA89GKMFGJEABN17JQJ
All those look legit to me...not sure of the model, double check, but you can't stump ebay or amazon for something like that. And if you somehow do...Alibaba or Aliexpress will have you covered.