The name originates from shorts worn by tap dancers during the 1930s while practicing their routines.Tap pants are mostly made of lace, silk, satin, polyester, rayon and cotton voile.Tap pants look much like track shorts, allow freedom of movement, and can be worn as an outer garment over other types of underwear (e.g., g-strings), however they are mostly worn as innerwear or leisure wear.For this reason, they have been losing popularity to slimmer versions of underwear since the mid 20th century,[1] as loose undergarments do not mix with figure-hugging dresses, and especially with pants.Another garment, similar to tap pants but tighter to the body, are boyshorts or booty shorts.