Create a 15-second promotional video in ENGLISH ONLY.
All on-screen text must be in English.
Do NOT include any Chinese text.
Video style: clean, professional, industrial B2B.
Show construction sites, warehouses, and workers wearing bright orange high visibility safety vests with reflective stripes.
Include close-up shots of:
- zipper closure
- breathable mesh back
- durable polyester fabric
Show bulk packaging with 12 safety vests packed together in one bag.
Emphasize value and bulk savings.