Qigong doesn’t require you to wear special clothes when practicing.
Clothing should not be so tight that it prevents you from moving freely.
Ideally, you should wear light, loose clothing and flat shoes with good support.
Sneakers, flat shoes and bare feet (weather and location permitting) are all welcome.
Warning: don’t buy those black tai chi sneakers you see in the videos!
They don’t provide support and can even cause foot pain.
Keep in mind that any loose, comfortable clothing is the best “uniform” for qigong, whether it’s a dress or casual clothes, or even pajamas.