1. Comfortable and breathable, and reflective at night for durability
2. Ultra-light design, strong buckle, around one
3. Hook and loop fastener is easy to wear
4. Safe buckle to prevent breaking free
5. Lightness, breathable, and comfortable to wear
6. High light and reflection should surround it at night
7. Lightsome, comfortable and convenient chest back
8. Material: breathable mesh cloth, nylon woven ribbon
9. Size: XXXS, XXS, XS, S, M, L