Ilse Jacobsen rain boot, ankle. Designed by Ilse Jacobsen from Denmark. Ilse Jacobsen have chosen to make all Ilse Jacobsen rubber boots out of the finest single-estate 100% natural rubber from sustainable harvests. This pure, natural rubber is mixed with their own secret recipe, making the fundamental composition 85% pure, natural rubber and 15% secret recipe. Entirely PVC-free, Ilse Jacobsen boots contain no animal by-products. To make sure that your feet stay dry and comfortable, they have lined all Ilse Jacobsen rubber boots with a mixture of 60% viscose and 40% cotton. They have placed nice and warm inner soles in them, made of 45% viscose, 35% polyester & 20% poly-acrylic. Ilse Jacobsen rubber boots soles are made of oil-resistant lightweight EVA, withstanding temperatures down to -40 degrees Celsius and the rubber uppers withstand temperatures down to -20 degrees Celsius. Each pair of boots have a unique appearance. Was with lukewarm water and soft soap and use Ilse Jacobsen care products: sponge or silicone oil to obtain the best maintenance of your boots. Ilse Jacobsen rubber boots are ideal for outdoor activities, rainy and snowy days or as fashion boots! Made specifically to deal with wind and water. Ilse Jacobsen rubber boots can help you love the rain. Ilse Jacobsen rubber boots run large to size.