Unworn nwt black XL - The Athleta Chi Tank is an athletic tank top that features a soft, buttery fabric that is breathable and moisture wicking. The fabric combo of Polyester and Lycra® Spandex delivers performance without looking or feeling like a tech fabric. The Chi Tank falls into the multi-functional tank category. These types of tanks are a mainstay for summer months and travel as you can wear them on a sunny-warm day for casual attire, to yoga at a local park, to the gym, and on a run.