Speedo equals better fit, performance, quality, and innovation. Our High Neck keyhole back with Core Stabilizer was built from the inside out, underpinning compelling design stories with exclusive technology. It features our Core Stabilizer that was developed with NASA and uses strategically engineered fabric that is placed 360 degrees around the core of the suit to provide core stability, keeping your hips higher in the water. But not only does it perfect your position in the water while swimming, this exclusive technology also improves your posture while holding you in tight around your core, which has the added benefit of making you look and feel your best in a swimsuit! This suit also features our new hydro-bra construction with removable cups, designed to provide an athletic fit with added support and long lasting comfort. Play, train, win in Speedo, the world's #1 swim brand!