The Spyder Women's Full Zip Core® Mid Weight Sweater is a great stylish way to keep warm during the winter months. It utilizes the CORE® fabric system. Exclusive to spyder, Core® is a special weave rib-knit face material with fleece backed fabric that has the look and feel of a sweater with the technical performance and comfort of a soft shell. It has a YKK® Reverse Coil center front zipper and a YKK® invisible hand pocket zipper, adding durability to the sweater.