What kind of rain cover this photographer is using?
I couldn't find anything similar on B&H and Adorama.
Photo: Stylecaster, by Jenny Norris
SNOWY STREET STYLE AT NEW YORK FASHION WEEK: OUTSIDE RAG & BONE
None of the photographers appear to be the same, but this is the event where your photo came from, and the general style of cover looks the same. Just perhaps more tightly wrapped in later photos. Maybe not..
It appears to be a cheap plastic rain cover that can be purchased over sites like ebay or amazon. You have to search for the terms camera rain cover. These are cheap ones though they only stop rain to a certain amount.