ACACIA Mombasa Button Up in Orange. - size L (also in XS) ACACIA Mombasa Button Up in Orange. - size L (also in XS) 50% cotton 50% silk. Dry clean only. Front button closure. Shirttail hem. Imported. ACAC-WS7. MOMBASA. Acacia is a collective of Hawai'i based women. They design swim and ready to wear inspired by the je ne sais quoi of the women who raised them. Out of necessity to bring sophisticated swimwear to the masses, and with a deep admiration for nature, heritage and femininity, ACACIA was born. In 2010, creative director and designer, Naomi Acacia Newirth officially launched her label: A collection of wearable silhouettes designed for real women, at every stage of life.