Champion Women's Double Dry Reversible Fitness Sports Bra 10% spandex sports-bras closure Both sides wick away moisture to keep you comfortably dry. Mesh panel (at back) adds cooling ventilation. Extra knit-in stretch ensures great fit and sleek support. Tag-free for itch-free softness, with non-chafe flat seams and durable double-stitched binding. Classic Compression. Medium Support. Ideal for moderate workouts.Fiber Content: Body: 81% Meryl Nylon/ 19% Spandex/ Insert: 90% Nylon/ 10% Spandex