I'm the only thing I'm afraid of

This picture is one that I found off lookbook.nu. It was posted by a michele k, a 19-year-old-girl from Switzerland. The look is called the 'I'm the only thing I'm afraid of'. The only thing that has confused me is the white fluffy arm hanging off of her bag, what is it???? I like the jumper especially how it covers the teared shorts underneath, the nerdy ray-ban glasses are a good match because they go with the large bag!
xoxo il
p.s: keep watching for more looks from this girl