As an exterior or interior piece, the Mountain Hardwear Women"s MicroChill Jacket is not afraid to be either one. It is made of Velous Micro fleece, dual zippered handwarmer pockets, and a Micro-Chamois chin protection. This fleece is perfect for just around the town in the Spring, Summer nights, or Fall or as a perfect midweight interior piece. The Mountain Hardwear Women"s MicroChill Jacket is great for everyday purposes.