The Kari Traa Tuva Tube is a women's neck warmer that will accent your look, with its subtle geometric pattern of vertical lines and honeycomb. Fully lined, it will amp up your comfort level outdoors. The synthetic and natural fiber blend features eco-sourced Merino wool and Tencel Modal, making it a breathable addition when hiking, skiing or just getting outdoors. OEKO-TEX 100 certification means that no fabrics pose any harm to human health.