Comfortable, Water Friendly Synthetic Nubuck Upper. Super Soft Synthetic Foamed Backed Jersey Lining. Micro Injected Inlay Strap Design Details. Honey Combed Texture EVA Footbed for Traction and Breathability. Adjustable Footbed Technology with Adjustable Arch System in the Midsole with Adjuster Key. Deep Contoured 51%Recycled Midsole. Reef Performance Tread Outsole Made of 25% Recycled Rubber.