Nike Calm Women's Mules Take a deep breath and slip into a minimalist look with maximalist comfort. Its contoured design is created from a single piece of foam for a smooth, seamless feel. Plus, the water-friendly foam has a textured footbed that provides grip even when wet—making them a versatile option you can take anywhere. You get all of the style, none of the effort. It's time for some Calm. Customizable Comfort Soft yet responsive foam provides amazing comfort, no matter where your day takes you. Plus, there's a removable heel strap so you can switch up your look. Water Ready Outer shell is made from water-resistant foam that is easy to clean. A subtle textured pattern on the footbed helps keep your feet in place—even when wet. Made for Every Day Full rubber outsole provides durable traction. Side cutout adds just the right amount of breathability.