Sperry Top-Sider Women's Intrepid Sperry Top-Sider has been the leading brand of footwear for those who love the water. From its introduction of the world's first siped rubber outsole for non-marking traction, to its advanced technical fabrication to combat the elements, Sperry Top-Sider remains the vanguard of high-performance amphibious footwear. Available around the globe in fine independent, marine boat shoe.