The Kamik Women's Sienna Mid Boots will take you from work to the restaurant with dry feet, thanks to its lightweight waterproof RubberHe bottoms and outsoles with excellent traction. The 3M™ Thinsulate™ insulation adds to the boots' overall warmth. It also features an ultra-comfortable removable insole that retains heat. Kamik spent two years perfecting the RubberHe, and it was worth it. As light as helium and as strong as iron, it offers superior traction and flexibility. Plus, it's 50% lighter than natural rubber and is 100% recyclable, so it's light on nature too.