This fleece top has been a staple in the CMP collections for years. Stretch Performance is a yarn which stands apart for its lightness, insulating properties and breathability. Oeko-Tex certification provides a guarantee that the production process uses only materials that are non-toxic to humans and the environment. A zip-front jacket that will prove to be a perfect top layer for strenuous activities or chilling out, but will also serve as an underlayer on colder days because it takes up very little space.