Lightweight, stretchy and comfortable, the Cairn half zip fits under or over layers perfectly to match the day’s conditions. Whatever they are, this fleece fits into your outdoor plans. 92% polyester / 8% elastane. Merrell Conductor stretch fleece provides versatile heat retention in varying conditions. Hidden thumb loop for cold-weather, aerobic activities. Seamless shoulder offers comfort when carrying a pack. Hidden thumb loop for cold-weather aerobic activities.