Nike footwear runs small in sizes. You should order one size larger than regular . If you normally wear a 43, order a 44 for Nike Boxing.
The Nike Free HyperKO Shield Trainer is a lightweight and flexible shoe designed for the hard surfaces used for boxing training outside of the ring.
12 cm low top design. High-performance DURALIKE synthetic leather for support and durability and breathable nylon mesh panels to keep feet cool during training or competition. Non-slip rubber sole for speed and quick footwork.