Nike Calm Mule Volt FD5130-700 Men Size | eBay。The Nike Calm Mule Volt FD5130-700 is a stylish and comfortable slip-on sneaker designed for men in size 13 and women in size 14. This athletic shoe features a breathable synthetic upper material with a cushioned foam insole for all-day comfort. The rubber outsole provides traction, making it suitable for various activities such as gym workouts, walking, weightlifting, and yoga. The sneaker also boasts a colorful Volt/Volt/Volt design, perfect for those looking for a vibrant and sporty footwear option.