This is a cotton sack that was used in the making of Japanese sake. Good vintage condition with sashiko stitching. 
 
Sakabukuro were dyed using persimmon tannin every summer for decades as a form of waterproofing and sanitation.
 
You can hang it as textile art or use it for your product.
 
Material: cotton 100% 
 
Measures: 79cm×26cm (31in × 10in)