Required… no. Preferred… absolutely yes! Sometimes there are physical reasons not to practice Nia Technique barefoot. If you have any concerns, discuss your personal situation with the instructor. However, doing Nia Technique barefoot will significantly help you strengthen the muscles, tendons and ligaments of your feet, legs and trunk. As a result, practicing Nia Technique barefoot helps you with body stability; reducing the likelihood of a fall and injury. There’s also an intangible and yet unmistakable connection with the Earth; a grounding that happens when you’re barefoot.