Hollow yarn characteristics:

1, light and bulky.

2, soft: a hollow shape after washing remains, therefore soft and lasting.

3, water Sugan: big gaps between fibers, water speed, water volume. The water released through the wash easily, thus drying time is short.

4, warm (insulation, contacts, warm feeling), low thermal conductivity of the air layer, difficult to heat, and absorbing heat from the skin surface to also small, and therefore with a warm sensation. Winter clothing must be light, warm, inexpensive.