In the video, a man is seen wearing a blue shirt and a backpack. He is demonstrating how to adjust the shoulder straps of the backpack. He first shows how to adjust the length of the strap by sliding it up and down. Then, he demonstrates how to adjust the tension of the strap by pulling on the buckle. The man's actions are clear and easy to follow, making it simple for viewers to understand how to adjust their own backpack straps. The video is shot in a well-lit room, and the man's movements are smooth and deliberate.