Noticing... bears in knitwear

I would have thought a bear's fur would keep him warm in winter.  Guess these bears prefer warmer weather. Woolly Bear by Julia Pott, Holiday Cards by Julia Pott, Bear Sweater by Marmee Craft, Sid Loves his Flannel Shirt by Corella Design, Bear Sleigh by Sandra Deickmann

I know Sid is wearing Flannel which isn't knitwear, but that is only because his sweater was at the dry cleaners.