NANUK 300 RIB SHERPA HEATHER: very warm, marled-look fleece with knitted exterior and high-loft reverse side. From Jack Wolfskin site: When the temperature drops, you can rely on the ROBSON FJORD fleece jacket to keep you warm. This stylish jacket features a cold-busting combination of a chunky knit on the outside and fluffy, high-loft fleece on the inside. It is this combination that makes the jacket so soft and warm. Sensitive and important items like your phone and wallet can be safely stowed in the zipped chest pocket.