Great hat but doesn't stretch too much
This hat is warm and excellent against the wind. Its soft on the inside and very lightweight. It stretches just enough to get on and stay firmly in place. However, it doesn't have much 'extra' stretch, so if the fit is slightly small, it won't stretch to cover up your (ahem) sizing error when you ordered it. That being said, if you order the right size, it is great for keeping the icy winds off your head. Note that it stays quite warm even when your sweating into it.