NICHOLAS Knot One Shoulder Top in Blue. - size 4 (also in ) NICHOLAS Knot One Shoulder Top in Blue. - size 4 (also in ) 100% cotton. Hand wash cold. Shoulder tie closure with bow tie accents on sleeves. NHOX-WS64. NT445CH. Established in Melbourne in 2009 Nicholas was an instant cult hit. Known for its effortless and easy to wear style, Nicholas pieces are instantly recognizable with their clean lines, subtle detailing and bold colour palette.