New project on the market of windsurfing equipment deserves attention for a number of reasons: its the first Russian maker of this class of sails - today we produce a full lineup of sails under the S4Y brand for training, freeride, freerace, wave and freestyle, as well as masts of all types. S4Y is the first project, conceived and brought to life by the specialists of the international windsurfing school with consideration of the requirements of windsurf-stations and leisure windsurfers.