The two have a partnership to develop a collection that would be inspired by the age-old Chinese philosophy.

In keeping with this, the Wu Ji collection includes four series, each designed for a particular season. Xuanshui (Water) has been launched for this summer, while the other three - Huoguang (Fire), Miaotu (Earth) and Zhenqi (Spirit) - will be unveiled in the coming seasons.

The four series are seen as reflecting the circle of life. Li believes that water is blood and sweat, representing freedom; earth is bones and muscles, meaning stability and thought. Fire is heat, and stands for persistence and warmth, while wind is breath, meaning recovery and restoration. The message behind the Wu Ji collection is one of harmony between human beings and nature.

Each series will include two lines, Wu Ji Master, designed for gym practitioners, and Wu Ji Apprentice for sports lovers.

Xuanshui is now in the market and is dominated by gray, blue and white. Usually, sportswear do not have collars, but the designers have put a straight-cut collar to each sport jacket, reflecting a typical feature of traditional Chinese costumes.

Another highlight is the pattern of what looks like water droplets in a pond. "For balance in one's life, one should control both the moving parts [the drops of water] and the still part [the pond]," explains Li.

Adidas high-tech materials, such as Clima Lite, Clima Cotton, and X-static, give the collection a smoother look and bring out the beauty of the water pattern. A hi-tech material called X-Static is also woven into the dress. The man-made material contains pure silver, which helps conduct heat away from the body.