The only purpose for fur in Lost in Blue is to upgrade your bed. You only need 2.
- "You can get this by hunting larger animals. It is soft and warm. I can make a high grade bed with this." -Scrapbook
Obtained by killing a large animal.
- "I have to shoot large animals to get this. It's soft and warm, so I'll bet I can use it to make nice beds." -Picture Book
Fur is obtained by killing a large animal. James may also bring some back if he is sent out for food.
"Fur from a large animal. Soft and warm, it can be used for making nice beds." -Album
In Lost in Blue: Shipwrecked! there are several types of fur and hide. Soft fur, Fur, etc. They each have unique uses. (further research required!)