The thermal conductivity of polypropylene fine denier is lower among all synthetic fibers, and it has the characteristics of keeping dry and heat storage. Anycool ® polypropylene has fine Tg point of -15��-20��C, which is less in polar environment. It will be hard and brittle and more suitable for extremely cold environments than other fibers. The US military also uses polypropylene fiber bristles in the inner layer of the clothing (ECWCS, Extended Cold Weather Clothing System) to make full use of the lightweight insulation properties of polypropylene fiber.
 
Wetsuit
When diving in warm weather, the wetsuit can isolate the temperature change caused by the depth and time; but when diving in cold weather, it needs to be protected by a layer of fabric. The fabric made of polypropylene fine denier has a good warmth effect. .
Swimsuit
Most swimwears have only two-way elasticity, and anycool ® elastic-coated yarns can be stretched with four sides of elasticity (125% stretch in each direction) for free stretch, anycool ® polypropylene fine denier is more than nylon fiber Keep warm, so it can reduce the cold feeling during early swimming or sea swimming. Because anycool® polypropylene fine denier has good chlorine resistance, it can also reduce the use of expensive chlorine-resistant elastic fibers.

Versatile sportswear
Polypropylene fine denier is an excellent fabric material for versatile sports. It keeps the wearer warm, dry and comfortable, and these properties make it useful for the inner layer of versatile sportswear and skin contact.
Other uses: combed knitwear, medical textiles, car fabric home fabrics, backpack cloth, denim pants, socks, sportswear, overalls.