Material Introduction
WINIW specializes in Anti-Mildew Synthetic Leather designed for footwear upper material, catering to footwear manufacturers, outdoor gear brands, and sports shoe creators worldwide. Mildew growth is a major issue for footwear used in humid environments—leading to odors, material degradation, and health risks—and our synthetic leather solves this with a built-in anti-mildew formula. Unlike surface-treated materials that lose effectiveness over time, our anti-mildew property is integrated into the material’s core, ensuring long-lasting protection.
We also prioritize the material’s performance as an upper: it’s flexible enough to adapt to foot movement, has a premium look (mimicking genuine leather or sporty textures), and supports customization in color and finish. Whether for outdoor boots, casual sneakers, or water-resistant shoes, WINIW’s Anti-Mildew Synthetic Leather meets the needs of brands targeting consumers in humid climates (tropical regions, rainy areas) or those who use shoes for activities like hiking, camping, or daily commuting in damp conditions. With consistent quality and global supply, we empower partners to create footwear that’s both stylish and resilient against mildew-related issues.


Material Feature
- Core-Integrated Long-Lasting Anti-Mildew Protection: The anti-mildew formula is embedded in the material’s core, not just the surface—ensuring it resists mildew growth for the shoe’s entire lifespan, even after repeated exposure to humidity, rain, or wet storage. This avoids the common issue of surface treatments wearing off and mildew returning.
- Flexible & Durable for Footwear Uppers: Engineered to be flexible enough to adapt to foot movement (preventing stiffness that causes discomfort) and strong enough to resist tearing, scuffing, or stretching—critical for upper materials that endure daily friction and pressure. It maintains its shape and structure even with frequent use.
- Customizable Aesthetics & Moderate Water Resistance: Available in diverse textures (smooth, grainy, sporty) and colors to match any footwear style—from classic boots to trendy sneakers. It also repels light rain and splashes, keeping feet dry in damp conditions, while remaining breathable to avoid sweat buildup.


Application Scenarios
1. All-Weather Casual Sneakers
Great for creating upper materials of “all-weather” casual sneakers. Consumers who wear sneakers in rainy or snowy weather will appreciate that the shoes do not develop mildew during the drying process. Additionally, the material supports customizable textures, allowing the sneakers to maintain a stylish appearance while having practical anti-mildew functionality.
2.Everyday Footwear in Tropical Regions
A must-have material for everyday shoe uppers used in tropical regions. Tropical areas feature high humidity and frequent rainfall, which make mildew growth on shoes a common issue. This anti-mildew synthetic leather ensures that shoes stay fresh and free from mildew even when used daily in such damp conditions, meeting local daily wearing needs.
3. Children’s Daily Footwear
Perfect for children’s shoe uppers. Kids’ shoes are often left wet due to puddles or spills and stored in closets, making them highly prone to mildew. This anti-mildew synthetic leather keeps the shoes clean, odor-free, and safe for kids’ delicate feet, addressing concerns about mildew-related issues.

WINIW Factory: Leading Manufacturer and Supplier of Premium Artificial Leather Solutions
WINIW Corporation is a pioneering enterprise specializing in the production, processing, and export of a diverse range of artificial leather products. Our factory excels in crafting PVC leather, PU leather, and microfiber leather, tailored to meet the demands of various industries. These versatile materials find extensive applications in footwear, apparel, furniture, automotive interiors, luggage, gloves, and more. By catering to overseas factories specializing in leather goods manufacturing, WINIW stands as a trusted partner in delivering excellence .

Quality Assurance: Our commitment to producing high-quality, eco-friendly artificial leathers ensures durability and aesthetic appeal, meeting international standards .
Innovative Range: Continuous research and development result in a cutting-edge portfolio, including ultra-realistic textures and sustainable options, keeping us ahead in the market .
Customizable Solutions: We offer bespoke services to tailor leather specifications according to client needs, fostering long-term collaborations and satisfaction .
Efficient Production: Advanced manufacturing processes and streamlined logistics guarantee timely delivery, minimizing lead times and enhancing business efficiency for our clients .



FAQ
Q: Does the anti-mildew property affect the material’s flexibility or comfort as a shoe upper?
A: No. The anti-mildew formula is integrated without compromising flexibility— the material remains soft and adaptable to foot movement, ensuring the shoe upper is comfortable to wear, even for all-day use.
Q: Can we customize the material’s thickness to suit different footwear types (e.g., thin for sneakers, thicker for boots)?
A: Yes, WINIW offers thickness customization. We can adjust it to be lightweight and thin for casual sneakers or more robust and thick for outdoor boots—all while retaining the anti-mildew protection and durability required for uppers.
Q: Will the color of the synthetic leather fade when exposed to sunlight, even with the anti-mildew feature?
A: No. We add UV-resistant additives alongside the anti-mildew formula, so the material resists color fading from sunlight. It maintains its original hue even with prolonged outdoor use (e.g., hiking, daily commuting).
Q: Is the material compatible with common shoe upper manufacturing techniques, like stitching, gluing, or embossing?
A: Absolutely. It’s designed to work with standard processes—stitching (no fraying), gluing (strong adhesion), embossing (crisp patterns)—without affecting the anti-mildew performance or durability.
We are eagerly looking forward to receiving your inquiry!