Molten has substituted the old model with this improved model since December of 2019 and FIBA has approved this change. They are really good professional basketballs. Molten basketballs works fine both indoor and outdoor. It is heavier than most balls because of the leather but it is what you can expect from a professionally used ball all around the world. Molten is used internationally such as the philippines and you can even see nba player using molten basketballs. If you want a high quality ball get this one.