Train you hardest in the Girls Tank Powered by Coolcore® from Holloway. This girls tank features moisture wicking, 88% polyester/12% elastane Coolcore® fabric with color secure® technology and 92% polyester knitted mesh/8% elastane wicking knit inserts with Coolcore® fabric technology. Coolcore® fabric is engineered to distribute moisture quickly throughout the garment. As the moisture spreads it dries faster and keeps you cool and comfortable.