The best option is fitted athletic clothing.
Leggings that cover down to the ankle and high waists are optimal bottoms. Leggings with a gusset in the crotch are best. Mainly you want something to cover through the backs of the knees. Please check that your leggings do not include any zippers.
Tops are best covering the midriff area. As you invert, loose clothing slides away from the body, for this reason, leotards become optimal. First few classes we recommend sleeved tops (no tank tops) to protect the underarms from abrasions.
All jewelry to be removed prior to class.