The Windchill GTX in Black/Lime is a versatile and comfortable choice for the cold and snowy days. VotedBest in Testby a popular Norwegian consumer magazine,Offers superior waterproofness, breathability, and insulation. The easy to use and comfortable slip-on design GORE-TEX® material and features a unique lining made with 20% wool. A high shaft and adjustable closure keep out snow and slush. On icy or wet terrain the spiky lugs and natural rubber sole provide excellent traction. An inner EVA midsole increases insulation around the foot.Toe bumper adds durability as well as protection for active children.  Upper: Textile and Other Materials.Lining: Textile.Sole: Other Material  Please note that when you purchase shoes for your child, you should select a size that is 1.5 cm larger than your child's foot. Wellies and boots should be up to 2 cm larger, for extra socks and insoles.