/diy/ - Do It Yourself

fairly related- is there a way to take the shine out of a shiny "cotton poly" knit fabric?

gf asked me a few minutes ago, I know nothing of clothing fabrics and sewing, so there's probably an obvious answer I just haven't been bothered to think about long enough to find on my own. She wants this hood thing for a renaissance fair costume but we're not sure how shiny the fabric is based off the pics with this lighting. Is there an easy fix like soaking it in vinegar or something?

I ask because this is $36 out the door and if she buys a pattern and the fabric herself from the store, plus shit she'll find once she's there, it's going to be a $100+ deal