ARC Simi Top in Green. - size M (also in ) ARC Simi Top in Green. - size M (also in ) 87% rayon 12% nylon 1% spandex. Dry clean only. Side zipper closures. Stretch rib knit fabric. AARC-WS5. SP17 2016 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.