'Cover knee'; Korean: 폐슬; Hanja: 蔽膝; RR: Pyeseul), also known as fu (Chinese: 韍; lit.

'kneepad'),[1] is generic term which refers to a type of traditional Chinese decorative piece of fabric, which acts as a knee covering, in Hanfu.

[4][5] The bixi originated from primitive clothing back when animal hides were used to cover the abdomen and the genitals.

[6] Among many other types of female clothing items, the bixi was listed in tomb inventories dating from 361 AD.

[3] The bixi is a length of fabric which is typically long enough to reach the kneel-level and cover the front legs when attached to the waist of its wearer.