57% Polyester , 28% Polyamide , 15% Elastane. This sports bra is designed to provide extreme support during your workouts, offering a light, comfortable feel with fewer seams and a flat closure for worry-free exercise. It features lightly padded, breathable cloud spacer cups, fewer seams, a higher cut, and a comfortable flat closure. The soft padded cups can be worn crossed in the back for enhanced comfort and stability. This bra ensures your chest stays in place during sport activities. It is OEKO-TEX® STANDARD 100 certified (93.0.3130 Hohenstein HTTI).