A photorealistic commercial video sequence of men's grey casual drawstring trousers, 15 seconds long, 9:16 vertical ratio. Shot 1 0-3s A cinematic slow zoom-in on the grey smooth fabric texture, a male hand gently strokes the material. Shot 2 3-6s Cut to a headless male model wearing the grey trousers and a white t-shirt, standing in a blurred modern office background with hands in pockets. Shot 3 6-9s Medium full-body shot of the model standing next to an office desk, showing the slim-fit cut and the small black "TRAVEL" tag on the side. Shot 4 9-12s Close-up on the thigh area, the model's hand pulls the fabric firmly to demonstrate high elasticity and stretchiness. Shot 5 12-15s Macro extreme close-up of the waist drawstring with metal aglets. Lighting is bright, clean, and professional office daylight.