FALKE Ergonomic Sport System's 'Nordic' top is a great base layer, whether you're planning a trip to the mountains or a day in the city. It's knitted from a warm wool-blend with 42% recycled materials and has a mock neckline. The close fit slips effortlessly under sweaters and jackets. Lower-Impact Materials. This product is made using at least 50% lower-impact materials or ingredients.Responsible Craftsmanship. This product promotes artisanal skills and a brand that invests in communities and adheres to fair-trade principles.Find out more about our NET SUSTAIN criteria here.