84% Polyester 16% Spandex blend fabric Side Vents - Fila's tank top here is very unique is that it has venting in the sides and the back yoke, in order to improve circulation and comfort for the women wearing it. Scoop Neck - This is a great design feature for a tank, in that it allows the tank top to sit gently on the shoulders without being too low cut and still looking sporty. Poly-Spandex Blend - This is a great combination used by Fila, in order to keep the skort incredibly strong and durable while also making it comfortable and form-fitting. Racerback Design - This is a design feature which really accentuates the shoulders and backs of women, and is great for athletic women who really want to show off their physique modestly.