This is a Jordan Brand sleeveless shirt. Style #: FN5857-100 Size: M Chest: 91-97cm, Height: 155-176cm *Size is approximate. [From the Official Website] ◇This top is designed to maximize performance on the court. Made with a blend of polyester and cotton, it's versatile, lightweight, and breathable. It's also enhanced with quick-drying material to keep you feeling fresh even during long sessions. ◇Nike Dri-FIT technology wicks sweat away from your skin for quick evaporation, helping you stay dry and comfortable. ◇Side vents at the hem enhance mobility. ◇Machine washable