HydroTread+ rubber outsole for water dispersion & maximum traction. Featuring 360? Ventilation+ for maximum breathability. Dual-Density Speedo+ Foam+ provides shock absorption & long-lasting comfort. Stretch collar for easy on and easy off. Comes with two different colored silicon printed laces for optimal fit. When it comes to shoes and water, it's all about movement-the soles and shoe construction that keeps you moving comfortably and a design that lets the water move in and out with ease. Nobody puts more thought and design into water shoe technology than Speedo+. So whether you're on a beach, boat or dock, you need the world's most evolved water footwear. You need Speedo+.