Nike Calm Mule Mens Sandals Black FD5130 001 Shoe Palace Nike Calm Mule Black FD5130 001 FB2185 001 Nike Calm Men's Mules. Nike PH Calm Mule 'Black' Nike FD5130 001 black black Flight Club Japan Nike Calm Mule Black Men's FD5130 001 FD5131 001 US. DescriptionEnjoy a calm comfortable experienceno matter where your day off takes you. Made with soft yet responsive foam these lightweight mules are easy to style and easy to pack. While the water friendly design makes them ideal for the beach or pool the minimalist look is elevated enough to wear around in the city. Plus a removable heel strap adjusts for the perfect fit. Time to slide in and check out.