Enjoy a calm comfortable experience—no matter where your day off takes you with the Women's Nike Calm Flip Flop Sandal. EVA upper in a flip flop sandal style with an open toe. Backless slip on entry. Nike swoosh detail on side. Outer shell is made from water-friendly foam that is easy to clean. Contoured design is made from a single piece of foam for a smooth seamless feel. Subtle texture pattern on the footbed adds grip even when wet. Rubber outsole gives you excellent traction even on slippery surfaces.