I love fat birds. Birbs. They make me so happy. So when I saw I could have fat birds keeping my ears warm, I jumped at the chance. And they really are WARM. I wore them around the house the day I got them and I had to take them off because my ears were getting TOO warm. But on cold days (it was 30 degrees Fahrenheit yesterday) they do an amazing job! I get lots of compliments and comments on how cute they are too c: These are really great for cold weather!