The ARENA Powerskin ST 2.0 Women's One Piece Open Back Competition Racing Swimsuit is a high-quality swimming suit designed specifically for women. Made with 71% Polyamide and 29% Elastane, this swimsuit offers a solid black color and a sleek one-piece design. It is suitable for regular size women in size 30, and is perfect for competitions or racing. The open back design adds a modern touch to this stylish and functional swimsuit, making it a great choice for any female swimmer.