JNBY Jiangnan cloth women's 2019 winter new 3D printing down series, 3D printing down using 3D printing technology, the down "punch" into the fabric, tightly lock down. It looks like a normal woolen fabric, but it is warmer; it has a down layer structure and insulation, but it is lighter and thinner. Source WeChat: JNBY Cotton Underwear,Cotton Lingerie,High Waisted Cotton Underwear,Sexy Cotton Underwear HANGZHOU TOSHENG TRADING CO.,LTD , https://www.tongshengtrading.com