Klattermusen Men's Sigyn Crew Sweater - ClayOne of outdoors most innovative brands, Klttermusen have created the Sigyn Crew a completely bio degradable fleece mid layer, therefore no microplastics into nature at end of life. Distinctive Klttermusen panelling, with their reflective triangles and embroidered branding to the chest. Shoulders, chest and top sleeves are one continuous piece; abrasion free when wearing a pack. A soft micro fleece with some stretch, its low profile means it wears well