The Menís Marmot Caldus Jacket is a ultra warm lightweight fleece sweater with big mountain performance. The 100 wt Jersey grid fleece fabric of the Caldus Fleece gives it distinction from the other sweaters you'd find in your closet. This Caldus fleece offers the perfect compromise for a mid-layer, with impressive insulating performance that weighs in at far under a pound and compresses down to practically nothing. Sure to be a year-long favorite, the Caldus Jacket also performs well as a mid-layer under a shell and a knock-about sweater for sitting around camp or hanging out around town. An athletic fit and plenty of stretch, this packable wonder has comfortable flat-locked seams, elastic cuffs and thumbholes. When you want comfort of soft fleece on the trail, lighten your load and up your warmth with the Men's Marmot Caldus Fleece Jacket.