1. Fabric: polyester quick-drying yarn weaving, moisture-absorbing and quick-drying, breathable and perspiration-wicking, lightweight and comfortable 2. Version: slightly loose version, more portable for exercise 3. Pattern: reflective printing details to improve the safety of activities in dark environments 4. Craftsmanship: velvet webbing + zero-sense label at the back collar, does not rub the neck, protects children's sensitive skin 5. Neckline: ribbed neckline, easy to put on and take off, not easy to deform