Drawing On Decades Of Experience Designing Premium Hiking Boots, Danner Originally Created The Vertigo Boot In 2009. The Vertigo 917 Combines Classic Styling And Innovation In A New, Modernized Boot. The Technical Vibram® Midsole And Outsole, Full-Grain Leather Upper And Waterproof GORE-TEX® Liner Make The Vertigo 917 The Ideal Boot For The Urban Explorer.