This is a warm jacket and blocks the wind fairly well. It's not like Gortex or nylon that will block the wind completely but it did a better job than other fleece jackets I own. I have worn it in 20-degree weather by itself for about an hour and it kept me warm. I wore it under my moderately insulated ski jacket, while skiing, in zero-degree weather and I got too hot. The hood fits over my ski helmet which is nice but that makes it even warmer. It is very comfortable and I wear it to work and around town on moderately cold days. It is nice looking, functional and definitely worth the money.