With an MS2 Bobbed, moulded outsole for an aggressive tread pattern the Derwent II offers quality, functionality and comfort in one product. Product Details 4mm CR Flex-foam PK Mesh Lining Comfort topline Reinforced toe and ankle Rubber outsole with aggressive tread pattern CR Flex-Foam adjusts to the unique contours of your foot to create a comfortable and stable foundation while resisting blisters and chafing Materials and Fabric Rubber/Neoprene We deliver Muck Boots Derwent II All Purpose Field Boots worldwide.We specialise in shipping almost anywhere in the world securely at competitive prices - across UK, US, Canada, Ireland, New Zealand, Europe - securely and fast at competitive prices