This comfy loose fitting baselayer is perfect for fast paced activities in colder temperatures the berghaus womens essential long sleeve baselayer has a 100 polyester construction with a zipped neck that allows you to increase or decrease the amount of ventilation you receiveactivityrunning walking hikingcolour swatchblackflat locked seamsyesgenderwomensmaterialpolyesterperformancesun protective wickingweight144gbrandberghauscolourblack