By increasing fiber cavities, storing static air, reducing fiber weight, and improving insulation function, the fiber is lightweight and excellent in retaining warmth.
Customizable specifications:
1.5D~15D
Length: 28/32/38/51/65/76/88/102MM
Customizable specifications:
1.5D*38MM
2D*51MM
3D*65MM
Discovering fiber functions
01
Thermal Fiber is more lighter than ordinary fiber with its hollow construction.
Hollow polyester staple fiber 
