The Mizuno Men's GX-Sonic Neo SL is built for swimmers wanting top performances. The Sonic Neo suit is built to allow flexibility and easy movement. Steamline (SL) model supports the core, helps lift the hips, and allows mobilty with medium compression to increase flexion and support. Using the Sonic Light Ribtex UW material, this suit has increased water repellency for faster movement and increased flotation in the pool.