The Ice Bug TORNE W RB9 GTX offers a lining made of a combination of sheep wool and a GORE-TEX® lining to deliver maximum comfort. The upper is made using a certified polyester fabric called Bluesign® with a suede leather and a watertight GORE-TEX® membrane. The top material provides extra stability and protection, while the midsole is equipped with a special blend of reflective aluminium and the insole is covered with a soft wool to keep your feet perfectly insulated. The outsole is made of a rubber blend RB9 ICEBUG to ensure reliable traction even below the freezing point.