Ferntree is the combination of 50 percent Advansa Thermo°Cool™ staple fibre with Duoregulation™ fibre technology and 50 percent bluesign® certified Merino wool. This breakthrough was created by YIM (Yarn in Motion), member of Südwolle Group in partnership with Advansa. Ferntree introduces a new dimension in function to the natural Merino fibres. Wool alone cannot deliver an optimized moisture management benefits, especially during high activity. During high activity, ADVANSA Thermo°Cool® and Merino wool garments will not absorb as much perspiration liquid as 100% wool garments. The wearer always stays dry and comfortable as the garment’s drying time is faster. “Ferntree” yarns can be applied for circular knitting, seamless knitting, socks and flat knitting. They are also available in a wide count range from 16 to 80 NM. They can also come in single and two-fold yarns.