Brocade
キン
にしき
綿 （メン、わた） Cotton
錦 （キン、にしき） Brocade
Brocade 錦 typically uses gold 金 or silver thread, so white 白 is probably referring to silver. A towel (radical) is a type of fabric, so it could be called Brocade as long as it's a raised Brocade pattern.