DuFFS - Octane (Burgundy/Yellow) - Men's: Dependable comfort and clean, classic good looks. Soft suede upper for long durable, comfortable wear. RRD mesh tongue and lining. Tongue stabilizing straps. Compression molded EVA with arch support and heel safe gel. Full-length sandwiched EVA midsole. 400nbs gum rubber outsole. A great addition to any wardrobe.