Snood or neck warmer, or perhaps neck warmer or snood, by comme des garcons (AW1997). Made from a cotton base onto which strips of brown, acrylic faux fur are mounted, it is essentially a large tube which is pulled over the head and can either be worn all the way over it (like a hood or maybe a tunnel), or pulled down past the head to make it more like a neck warmer. The shape of the tube (and joint between the first and second sections of acrylic) mean it sits on an angle (quite simple, quite ingenious, for some reason quite hard to describe at moment of writing). Example of one way to wear it shown in picture 6 (on comme des garcons AW1997 runway, photo from "Conde Nast Archive").
Decent condition, with fraying to corner point between first and second sections of acrylic (see picture 9).
Check measurements to confirm fit
All measurements taken flat
Length: 74.5 cm
Width: 38 cm
Neck opening: 36.5 cm
80% moda acrylic 20% acrylic faux fur, 100% cotton base, 100% polyester lining
Made in japan