Scale up your swims in the Speedo Womens Placement Muscleback One Piece Swimsuit. Built for lap swimming, the swimmers are constructed with chlorine resistant Endurance 10 fabric which incorporates CREORA HighClo to the fabric retain it's shape and stretch. The muscleback construction is ideal for lap swimming, allowing shoulders to move freely. The high scoop front, medium leg and modest back offer plenty of coverage so you can concentrate on your lap goals. Features Fabric: 80% Nylon, 20% Elastane Chlorine resistant Endurance 10 fabric is 10 times more resistant to chlorine that conventional swimwear to help prevent fading and piling Shape retention technology helps fabric snap back after stretching Front lined CREORA HighClo delivers stretch materials that are more resistant to chlorine Medium Leg Muscleback construction allow shoulders to move freely