The style of Li Ning down jacket adopts waterproof and breathable technology or water repellent technology such as GORE-TEX. These technologies can make the fabric waterproof, effectively prevent water droplets from splashing and keep the interior dry. WARMSHELL thermal comfort technology is also adopted, and a powerful thermal insulation system is formed through the combination of fine fiber high-efficiency warm velvet built-in materials and thermal insulation lining materials. In the filling of down jackets, you can also use high-quality gray duck down, which has a high down content, thus providing a better warm effect. So Li Ning's down jacket is of good quality.