Storyline Sales of down jackets enter hot season in China [Voice_over] For at least another month or so, China will be in down jackets season, the peak shopping and manufacturing period for the puffy winter gear. In one clothing store in central China's Zhengzhou, shoppers choose from the latest styles and colors, investigating the jackets' filler, fabric and weight. A salesperson said the jacket's heaviness is a key factor for many consumers. [Sound_bite] Yin Guixian, saleswoman: "The best seller is the lightweight down coat weighing about 450 grams. Sales this month increased by 100 percent compared to last month." [Voice_over] At one of the city's wholesale clothing markets, some 40,000 down jackets are shipped every day. One of the market's managers says shipments of down coats and padded coats have been accounting for nearly 40 percent of their total shipments in recent days. [Restrictions: No access Chinese mainland]