This product contains Nano ceramic powder, it can absorb the lost body temperature, it is superior to wool and feather.  Specifications of products: Fineness 1.5D-20D; length 38MM-100MM. Application:Health care clothes, socks, quilt, sleeping

This product contains Nano ceramic powder, it can absorb the lost body temperature, it is superior to wool and feather. Specifications of products: Fineness 1.5D-20D; length 38MM-100MM. Application:Health care clothes, socks, quilt, sleeping bag, k