Seasonal sale. Material: Microfiber, Canvas, Polyurethane.. Details: Microfiber, canvas upper, polyurethane (PU) insole cushion, Am-Tech sole technology, direct injected sole construction, eco-friendly materials, anti-slip sole properties. The Ferris is made with a lightweight polyurethane midsole and a soft yet durable thermoplastic polyurethane outsole along with a removable polyurethane insole. Traditional boat shoes have cemented soles that either lose cushioning over time or have an all rubber sole that lacks flexibility and comfort.The Aureus Ferris is guaranteed to be one of the most comfortable boat shoes you will ever slip your feet in.Festive offer. These materials not only are very lightweight and cushioning, they provide long lasting durable comfort