Abstract: The invention relates to a sport equipment, whose primary aspect is endurance training. Another objective of the invention, apart from increasing endurance, is to minimize the risk of injury during and after practices. The invention has a comfortable, tailor-made design shell (1), filled with weight filler (2). The device provides a high degree of freedom to the user, because it does not obstruct the hands and legs while in use. The size of shell (1) is adapted to the user, such that the user can adjust to required size on the neck portion of shell (1), and the equipment takes on an endless shape. Furthermore, by closing the equipment, a 3 dimensional space curve is formed by around the longitudinal axis (4) of human body and the weight filler (2) is placed in sections along the direction of longitudinal axis (4) of equipment.

Abstract: The invention discloses an equipment for improving physical fitness, whose primary aspect is muscle strengthening. Another objective of the invention, besides maximizing muscle development, is to minimize the risk of injury during and after practices. The invention has a comfortable, tailor-made design shell (1), filled with filling material. The shell (1) of the filler can be filled or emptied during exercises (in-situ method). The shell (1) does not have any strips or handles on its outer surface. The shell (1) size is designed in a way that its size matches the shoulder width of the user. In addition, the device is equipped with a scale (3), which indicates the charge status.

Abstract: The invention relates to a sport equipment, whose primary aspect is endurance training. Another objective of the invention, apart from increasing endurance, is to minimize the risk of injury during and after practices. The invention has a comfortable, tailor-made design shell (1), filled with weight filler (2). The device provides a high degree of freedom to the user, because it does not obstruct the hands and legs while in use. The size of shell (1) is adapted to the user, such that the user can adjust to required size on the neck portion of shell (1), and the equipment takes on an endless shape. Furthermore, by closing the equipment, a 3 dimensional space curve is formed by around the longitudinal axis (4) of human body and the weight filler (2) is placed in sections along the direction of longitudinal axis (4) of equipment.

Abstract: The invention discloses an equipment for improving physical fitness, whose primary aspect is muscle strengthening. Another objective of the invention, besides maximizing muscle development, is to minimize the risk of injury during and after practices. The invention has a comfortable, tailor-made design shell (1), filled with filling material. The shell (1) of the filler can be filled or emptied during exercises (in-situ method). The shell (1) does not have any strips or handles on its outer surface. The shell (1) size is designed in a way that its size matches the shoulder width of the user. In addition, the device is equipped with a scale (3), which indicates the charge status.