This is a cozy cap and a good deal. I ordered it because I don't like the idea of rummaging through head wear at a store, without knowing who's tried it before. The price and reviews on this one made it an easy call to try.

The cap itself is very soft and fairly stretchy, which means very comfortable. It is medium warmth for such things: not too light but not too warm. I'd say it's appropriate for probably 5-35 degrees or so, depending on the wind and how much you're working out (probably a little lower if skiiing).

Despite being stretchy and soft, the shape should hold up over time because there is a fairly stout cord inside the edge to help it sit well and hold its shape. The only downside is that it might be slightly too tight for an extra large man. Apart from that, I expect it would fit any adult or teenager just fine. I'd order again and am happy to recommend it.