Which one of these wig caps would fit a ddh-01?

https://www.amazon.com/s/ref=sr_pg_1?rh=i%3Aaps%2Ck%3Adollfie+wig+cap&keywords=dollfie+wig+cap&ie=UTF8&qid=1464836135

 

I'm not sure how the sizing works. Which one of these caps would definitely fit?

1/3 Scale aka 8-9 Inch works best for the DDH-01 and usually all other DD heads as they're all 1/3 scale heads.

 

Just to note though silicone wig caps don't prevent stains, they just provide extra grip for wigs to stop them sliding. To prevent stains you'll need a fabric wig cap.

Where can I find a fabric cap? Not seeing it in my searches.

I bought my cloth wig caps from Coolcat. They sell white and then a normal skin kind of color; they're located near the bottom of the page.

Where can I find a fabric cap? Not seeing it in my searches.

baby sock will do