FINA approved style. Fully compliant with the new FINA rules that come into effect beginning January 2010. Constructed from Speedo's unique LZR Pulse® fabric. LZR Pulse® is water repellent, chlorine resistant, and fast drying. The bonded seams create the lowest drag possible. Unique 3D 3-Piece pattern is engineered to optimize swimmer's shape. Bonded seams create a perfectly smooth yet flexible streamlined surface. LZR Pulse® provides 15% more compression; improving muscle efficiency through reduction on muscle. Fit engineered from body scan data resulting in an optimum biomechanic fit.