Roger Federer is featured in the ad.

The ad opens with Roger Federer sitting on a stool against a white background, with the text 'Summer with Roger' on screen. He then describes his ideal summer day, which involves hiking in the Swiss mountains with his family. The camera then focuses on a close-up of his shirt, followed by a shot of the shirt draped over a white stool. The ad concludes with product details and the UNIQLO logo.