ACACIA Crochet Humuhumu Top in Pink. - size L (also in S) ACACIA Crochet Humuhumu Top in Pink. - size L (also in S) Self: 73% nylon 27% spandexLining: 85% nylon 15% spandexWoven: 100% poly. Hand wash cold. Crochet fabric overlay. Halter neck and back tassel tie closures. Imported. ACAC-WX639. HUMUHUMU. 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.