Ulla Johnson Arabella Blouse in Blush. - size 4 (also in 2) Ulla Johnson Arabella Blouse in Blush. - size 4 (also in 2) 100% silk. Dry clean only. Back keyhole with button closure. Ruffle detail. Balloon sleeve. Smocked cuffs. Sheer fabric. Imported. ULLA-WS184. PS200233. Ulla Johnson knows what women want. With focus on design quality, fit and simplicity, she brings warmth and comfort into our closets.