Channel all things feminine with No. 21 Ruffle Blouse. Crafted from luxurious lightweight silk, the button up is accented by delicate pintuck accents trailing down the bodice.. 69% acetate 31% silk. Dry clean only. Front button closure. Pintuck detail. Buttoned sleeves. NO2R-WS9. G011 5111 1101. With a keen eye for trends of the moment, No. 21 offers a modern wardrobe of timeless sophistication with a refreshing flair of striking playfulness. Designer Alessandro Relacquer mixes feminine and masculine shapes into preppy, cool luxury pieces imbued with the innate sense of Italian femininity and style. The collection features immaculately tailored and demure silhouettes accentuated with eye-catching embellishments.