From their FAQ (https://californiafruitwine.com/faq, retrieved April 2017)
"California Fruit Wine is made from fruit and, naturally, gluten free and vegan." [there's a later section that refers to sediment in some bottles, so it doesn't appear that fining is at play here]
The California Fruit Wine Co.
Vegan
The one product listed is vegan friendly.
Products (1)
What the company told us
Correspondence on record, with the date of each entry.