First of all, Ross 2.5 is a guard shoe and James IX is a small forward shoe, depending on where you play. In terms of air permeability, both are good. Adi's sprint web and Nike's Hyperfuse are both good. However, in comparison, the upper of James IX also adopted Nike's flywire, which enhanced the support stability of the upper. In terms of weight, rose2.5 is definitely lighter. In terms of comfort, James IX is equipped with a front palm zoom air cushion, a rear palm Max Air 180, a double-layer Phylon midsole structure, and a heel memory sponge, which has excellent shock absorption, not to mention comfort, especially for people with large weight. Rose2.5 is not as good as. Wear-resistant, neither can afford to hurt. The signature shoes of star players are not very wearable. Generally speaking, Nike has more scientific and technological content than Adigaw and James IX. In terms of price, Ross 2.5 1280 yuan and James IX 1599 yuan. But the most important thing is to see where you play on the court. If you play as a defender, it is recommended to start from Ross and play as a striker from James IX. I am exhausted.