Keen Astoria West: a slip on, closed toe hybrid sport sandal with bungee cord & toggle for secure fit. The color is called “sea moss/tie dye” which is a cerulean blue with a subtle tie-dyed markings on the straps • Size 8.5 • Waterproof, washable upper material • Contoured fit • Recycled plastic bungee cord and lace-lock toggle • Foam midsole for lightweight cushioning • Shock-absorbing foam insole with arch support • Aqua grip rubber for traction New without box, never worn, no flaws. Ships quickly from a smoke-free and pet-free home