Mares X-streamNew foot pocket. No parachute effect Next generation OPB New blade construction for less turbulence The X-stream performance, comfort and lightweight design are the incredible result of sixty passionate years at the service of diving. The X-stream is truly a leap into the future, and changes forever how we envision the creation of a fi n. More than 2 years of resources, experiments and testing and four Mares patents all concentrated in one unique product. Video ↓ //www. mares. com/videoplayer_2/?region=ALL