Wenzhou Chinese Fiber Co.,Ltd product of Thermal insulation material has two series, one made with PP and PET bicomponent and the other from pure PP. They all have the superior property of light-weight, thin, soft, breathing and moisture-resistant. They are desirable and comfortable for wearing. It is widely used in your jackets‚ pants‚ gloves‚ hats and boots to help keep you warm when it is cold outside. The unique microfibers or fine fibers that make up material insulation work by trapping air molecules between you and the outside. The more air a material traps in a given space‚ the better it insulates you from the cold outside air. Because the fibers in insulation are finer than the fibers used in most other synthetic or natural insulation‚ they trap more air in less space‚ which naturally makes insulation a better insulator