Meet the Hydro Next Gen. The Hydro style you’ve come to love plus the performance capabilities from the brand that makes the world’s #1 hiking boot brings you the most capable Hydro Moc to date. Equipped with truly hands-free entry, max cushion FloatMax midsoles, and an improved heel shape combine for friction-free all-day comfort and style. Features Water-friendly EVA foam upper for a lightweight flexible fit and ease of cleaning BLOOM® performance foam is made of algae biomass, transforming green water into clean water in the process FloatMax™ Foam midsole for a soft and smooth underfoot experience Rubber outsole