The polar bear calls the Arctic its home. In winter, the Arctic can get as cold as -50° Celsius. Even though its fur looks white, each hair is actually transparent and hollow. The sun warms the air inside these hairs, allowing polar bears to stay warm in freezing temperatures.

This isn't a product you can use like a normal item. But if you're into observing or learning about polar bears, here are some tips. If you're planning to see them in the Arctic, dress really warmly as it's extremely cold. Don't get too close to them as they are wild animals and can be dangerous. To keep your knowledge about them 'fresh', read up - to - date books and watch documentaries. Remember, they are an important part of the Arctic ecosystem, so respect their habitat.