Self: 90% poly 10% spandexContrast: 72% nylon 28% spandex. Perforated mesh accents. Stretch fit. CHIR-WM51. HW6 40201AG. CHICHI (pronounced she-she) ACTIVE is a line of activewear based out of Southern California, focusing on versatile pieces that can be incorporated into your everyday lifestyle. With a standard belief that simplicity is key, fit is everything, timeless over trendy, CHIMCHI's styles take you effortlessly from the gym to the street polished and put together.