silk bath; microbubble bath
A type of bubble bath that produces extremely fine, milky-white bubbles, giving the water a silky appearance. Wasei-eigo from English 'silk bath'.
wasei-eigo (Japanese-coined English), from silk bath
This spa has a silk bath.
Silk baths are popular for being gentle on the skin.
Wasei-eigo from English 'silk bath', referring to a bath with very fine bubbles that give the water a silky, whitish look.