A modern classic - the Ultra 2.0 is a nice, streamlined winter boot for kids, made from a high-tech PU material that keeps feet warm no matter how cold it gets. Quick to put on and take off and easy to clean, Ultra is made from a flexible polyurethane called Elastopan®, which is 100 percent PVC-free and contains millions of tiny air bubbles. This makes it 40 percent lighter than PVC or rubber and offers 2.5 times more insulation than normal PU boots. Combined with a raised wool blend lining, the Ultra 2.0 keeps feet warm down to -20°C. Viking's Nordic last leaves a little extra room for the toes and stays comfortable all day long. A thick PU sole with large lugs grips well and four bright color combinations complete this unique winter boot that is loved by children and parents alike.