Beanies were intended to be worn at the snow or during the cold days in those extreme cities like New York and Chicago. But we have seen the trend of wearing a beanie as a fashion style. It can be pretty nice in 70 degree range and still put on a beanie, only if it goes with your fit. You can make it look like grungy chic or glamorously relaxed. Either way, the beanie is awesome and it is a good trend to adapt.