Handmade Chelsea rubber ankle boots. These Wellingtons are made from the finest single estate, sustainably harvested natural rubber. This rubber is blended with our own secret recipe, making the fundamental composition 52% natural rubber and 48% secret recipe. Completely PVC-free, our rain boots contain no animal by-products. The result is a sturdy and reliable companion for rainy days. We have developed a special anti-ice sole with a rough surface, providing the best possible traction in slippery and icy conditions. These Wellies are resistant to temperatures down to -20 degrees Celsius. Natural rubber will eventually develop a white surface over the years if you don't treat it regularly. This is simply because the rubber loses its essential oil. To keep your boots in good condition for many years, we recommend treating them with our oil once a month.