ARC Hailey Dress in Orange. - size M (also in ) ARC Hailey Dress in Orange. - size M (also in ) 87% rayon 12% nylon 1% spandex. Unlined. Rib knit fabric. AARC-WD14. SU17 5016 WRK. ARC is most notable for bringing design to time-tested classics. Scalloped edges, raised texture, and ruffled accents each aid in creating pieces with character. Skin hugging silhouettes are elevated by statement outerwear, both of which are represented in the versatile yet focused line.