I made this wooly crochet hat in the style of an old fashioned rubber swimming hat.
Here it is from the front. It's the first crochet hat I've made. Didn't use any kind of guide, so it's full of errors, such as seam running up the back and plenty of gaps. I think I learnt a lot whilst making it though.
Here is the button detail. The chin strap looks a little baggy on this polystyrene head, but it fits okay on me. (I bought the head on ebay by the way, apparently its "unisex" but I don't think it could pass as a man by anyone's standards.)