PU leather, also known as polyurethane leather, has become a popular alternative to genuine leather in various industries, from fashion to furniture. As a PU leather supplier, I often get asked about its breathability compared to fabric. In this blog post, I’ll delve into the science behind breathability, compare the characteristics of PU leather and fabric, and discuss the implications for different applications. PU Leather

Understanding Breathability
Breathability refers to the ability of a material to allow air and moisture to pass through. It’s a crucial factor in determining the comfort of a product, especially in items that come into direct contact with the skin, such as clothing, shoes, and upholstery. When a material is breathable, it helps to regulate body temperature by allowing sweat and moisture to evaporate, preventing the build – up of heat and humidity.
The breathability of a material is influenced by several factors, including its structure, porosity, and the type of fibers or polymers it is made of. For example, natural fabrics like cotton and linen are known for their high breathability because they have a porous structure that allows air to circulate freely. On the other hand, synthetic materials may have different levels of breathability depending on their manufacturing process and composition.
Breathability of PU Leather
PU leather is a synthetic material made by coating a fabric base with a layer of polyurethane. The breathability of PU leather can vary significantly depending on the manufacturing process and the quality of the materials used.
Manufacturing Process and Breathability
In some cases, PU leather can be engineered to have good breathability. Manufacturers can use special techniques to create a porous structure in the polyurethane layer, allowing air and moisture to pass through. For example, micro – perforation is a common method where tiny holes are made in the surface of the PU leather. These micro – perforations act as channels for air and moisture to move in and out of the material, enhancing its breathability.
However, not all PU leather is created equal. Some low – quality PU leather products may have a dense, non – porous polyurethane layer that restricts the passage of air and moisture. This can lead to a stuffy and uncomfortable feeling when the material is used in applications like clothing or upholstery.
Factors Affecting PU Leather Breathability
- Thickness of the Polyurethane Layer: A thicker polyurethane layer generally reduces breathability. As the layer becomes thicker, it becomes more difficult for air and moisture to penetrate.
- Type of Polyurethane: Different types of polyurethane have different properties. Some polyurethanes are more breathable than others, depending on their chemical composition and molecular structure.
- Coating and Treatment: The use of additional coatings or treatments on the PU leather can also affect its breathability. For example, a waterproof coating may reduce breathability, while a breathable finish can enhance it.
Breathability of Fabric
Fabric, on the other hand, encompasses a wide range of materials, each with its own breathability characteristics.
Natural Fabrics
- Cotton: Cotton is one of the most breathable fabrics. It has a porous structure that allows air to flow freely, and it can absorb and release moisture quickly. This makes it a popular choice for summer clothing and bedding.
- Linen: Linen is another highly breathable fabric. It is made from the fibers of the flax plant and has a loose, open weave that promotes air circulation. Linen is also highly absorbent, making it suitable for hot and humid climates.
- Wool: Wool is a natural fiber that has good breathability. It can wick moisture away from the skin and keep the body warm in cold weather while still allowing air to circulate.
Synthetic Fabrics
- Polyester: Polyester is a synthetic fabric that is known for its durability and wrinkle – resistance. However, it is generally less breathable than natural fabrics. Polyester fibers are tightly packed, which restricts the flow of air and moisture.
- Nylon: Nylon is another synthetic fabric that is often used in sportswear and outdoor clothing. It is lightweight and strong, but its breathability can vary depending on the specific type and construction of the fabric.
Comparing PU Leather and Fabric in Different Applications
Clothing
- Advantages of PU Leather in Clothing: PU leather can offer a stylish and durable alternative to genuine leather in clothing. When engineered for breathability, it can provide a comfortable wearing experience. For example, micro – perforated PU leather jackets can allow air to circulate, preventing overheating.
- Advantages of Fabric in Clothing: Natural fabrics like cotton and linen are ideal for everyday clothing, especially in warm weather. They are breathable, soft, and comfortable against the skin. However, they may not be as durable as PU leather.
Upholstery
- Advantages of PU Leather in Upholstery: PU leather is a popular choice for furniture upholstery because it is easy to clean and maintain. When it comes to breathability, high – quality PU leather with good ventilation properties can provide a comfortable seating experience.
- Advantages of Fabric in Upholstery: Fabric upholstery can offer a wide range of textures and colors. Natural fabrics like cotton and linen are breathable and can add a warm and inviting feel to a room. However, they may be more prone to staining and wear compared to PU leather.
Footwear
- Advantages of PU Leather in Footwear: PU leather is commonly used in shoes because it is lightweight and flexible. Breathable PU leather can help to keep feet dry and comfortable by allowing air to circulate.
- Advantages of Fabric in Footwear: Fabric shoes, especially those made from breathable materials like mesh, are popular for sports and casual wear. They provide excellent ventilation and can prevent foot odor.
Conclusion
In conclusion, the breathability of PU leather compared to fabric depends on several factors, including the manufacturing process, the type of material, and the specific application. While fabric, especially natural fabrics, is generally more breathable, high – quality PU leather can be engineered to have good breathability.

As a PU leather supplier, I’m committed to providing products that offer a balance between style, durability, and breathability. Our PU leather products are designed using advanced manufacturing techniques to ensure optimal breathability, making them suitable for a wide range of applications.
900D Oxford Fabric If you’re interested in learning more about our PU leather products or have any questions about breathability and its impact on your specific needs, I encourage you to reach out to us. We’d be happy to discuss your requirements and provide you with samples and detailed information. Let’s start a conversation and find the perfect PU leather solution for your project.
References
- "Textile Science and Technology" by Robert M. Christie
- "The Handbook of Polyurethanes" by George Woods
- Journal articles on material science and textile engineering related to breathability of synthetic and natural materials.
Anhui Redbud New Material Technology Co., Ltd
As one of the leading pu leather manufacturers and suppliers in China, we warmly welcome you to buy cheap pu leather from our factory. All customized products are with high quality and competitive price.
Address: Hongye Road, Economic Zone, Susong, Anqing City, Anhui Province, China
E-mail: nancy@redbudfabric.com
WebSite: https://www.redbudfabric.com/