Is Faux Leather Breathable? Complete Analysis by Material Type”
# Is Faux Leather Breathable? Complete Analysis by Material Type
If you’re sourcing synthetic leather for clothing, shoes, or any product that touches skin, breathability isn’t optional—it’s essential. But here’s the problem: most faux leather isn’t breathable at all.
So how do manufacturers work around this? And which materials actually perform better?
Let’s break it down honestly.
Why Breathability Matters in Synthetic Leather
When a material “breathes,” it allows moisture vapor (sweat) to escape while blocking liquid water from entering. This is measured by MVTR (Moisture Vapor Transmission Rate)—the higher the number, the more breathable the material.
For real-world applications:
- Clothing and jackets: Without breathability, you feel like you’re wearing a plastic bag. Sweat traps against skin, leading to discomfort and odor.
- Footwear: Non-breathable shoes cause sweaty feet, bacterial growth, and faster material breakdown.
- Furniture: Less critical, but breathable upholstery feels more comfortable in hot climates.
- Automotive seats: Breathability prevents that sticky feeling in summer.
Now let’s look at how different faux leather types perform.
Is PU Leather Breathable?
The honest answer: Most PU leather is NOT breathable.
Standard PU leather is created by coating a fabric backing with a continuous polyurethane layer. This coating blocks air and moisture completely—MVTR is essentially zero.
However, there are exceptions:
Breathable PU Leather Options
1. Porous PU Coating
Some manufacturers use modified PU formulations with microscopic pores. These pores are small enough to block water droplets but large enough to let water vapor pass through.
- MVTR: 500-2000 g/m²/24h (varies by formulation)
- Commonly used in: Sportswear, athletic shoes
- Trade-off: Slightly less waterproof than standard PU
2. Perforated PU Leather
Physical perforation creates actual holes in the material. Very effective for breathability, but:
- Visible holes change the aesthetic
- Not suitable for all product types
- Water can enter through holes
3. Water-Based PU (WPU)
Water-based polyurethane coatings can be formulated to be more porous than solvent-based alternatives. However, breathability still requires intentional design.
Standard PU Leather MVTR
- Non-breathable PU: <50 g/m²/24h (essentially a plastic barrier)
- Breathable PU: 500-2000 g/m²/24h
- For comparison: Cotton fabric MVTR is around 4000-6000 g/m²/24h
Is PVC Leather Breathable?
PVC leather is the least breathable option—period.
PVC (polyvinyl chloride) forms an even denser, more impermeable layer than PU. The plasticized PVC coating completely blocks air and moisture.
- MVTR: Near zero for standard PVC leather
- No commercial breathable PVC options exist
- Even perforation doesn’t help much—the plastic edges of holes still trap heat
Why Choose PVC Then?
Despite zero breathability, PVC excels in:
- Extreme durability (10+ years lifespan)
- Waterproofing
- Easy cleaning
- Cost-effectiveness
For applications where breathability doesn’t matter (outdoor furniture, wall coverings, automotive door panels), PVC is often the better choice.
Microfiber Leather Breathability
Here’s where things get interesting.
Microfiber leather is constructed differently. Instead of a continuous coating over a fabric backing, microfiber leather is made from a three-dimensional nonwoven structure that mimics the collagen fiber network of genuine leather.
Why Microfiber Breathes Better
- Open fiber structure: Air can pass through the microfiber network
- Moisture wicking: The fibers can absorb and release moisture
- No continuous plastic barrier: Just fiber and a thin surface coating
Microfiber Leather MVTR
- Standard microfiber: 800-2500 g/m²/24h
- Premium breathable microfiber: Up to 3000+ g/m²/24h
- Genuine leather: 1500-3000 g/m²/24h (varies by type and thickness)
Bottom line: Microfiber leather is the only synthetic option that approaches genuine leather’s breathability. For shoes and garments, it’s the best faux leather choice.
Perforated Faux Leather: The Breathability Solution
When you can’t change the material, change the design.
Perforation is the most common workaround for non-breathable faux leather. Small holes punched through the material allow air circulation.
Types of Perforation Patterns
| Pattern | Hole Size | Typical Use |
| Micro-perf | 0.5-1mm | Shoe uppers, gloves |
|---|---|---|
| Standard perf | 1-3mm | Car seats, furniture |
| Large perf | 3-5mm | Athletic equipment |
Pros of Perforation
- Works with any faux leather type (PU, PVC, microfiber)
- Significantly improves airflow
- Adds design interest
- Low cost to implement
Cons of Perforation
- Allows water entry (not waterproof)
- Changes the material’s appearance
- Can weaken structure if holes are too dense
- Not suitable for all applications
Breathability Ratings by Application
Different products have different breathability requirements. Here’s what to aim for:
| Application | Minimum MVTR Recommended | Best Material |
| Summer jackets | 2000+ g/m²/24h | Breathable PU or microfiber |
|---|---|---|
| Athletic shoes | 1500+ g/m²/24h | Perforated microfiber |
| Casual shoes | 800+ g/m²/24h | Perforated PU or microfiber |
| Handbags | Not critical | Any material works |
| Furniture | 500+ g/m²/24h (for comfort) | Perforated PU or microfiber |
| Car seats | 800+ g/m²/24h | Perforated PU or PVC |
How Thickness Affects Breathability
This is straightforward: thinner materials breathe better.
| Thickness | Breathability Impact |
| 0.5-0.7mm | Highest breathability, less structure |
|---|---|
| 0.8-1.0mm | Balanced option |
| 1.1-1.4mm | Reduced breathability |
For garments and shoes, stay under 1.0mm if breathability matters. For furniture and automotive, thicker is fine—you’ll likely perforate anyway.
Backing Materials That Improve Breathability
The fabric backing also affects overall breathability:
| Backing Type | Breathability | Notes |
| Non-woven | Low | Dense, blocks air |
|---|---|---|
| Woven | Medium | Air can pass between fibers |
| Knitted | Higher | Most open structure |
If breathability is critical, request a knitted or mesh backing with your PU coating.
Testing Breathability: MVTR and Air Permeability
If you need to verify breathability claims, two tests matter:
MVTR Test (Moisture Vapor Transmission Rate)
- Standard: ASTM E96 or ISO 15496
- Measures how much water vapor passes through material in 24 hours
- Higher numbers = more breathable
Air Permeability Test
- Standard: ASTM D737 or ISO 9237
- Measures how easily air flows through material
- Reported in cfm (cubic feet per minute) or mm/s
Ask your supplier for test reports if breathability is a requirement. Don’t rely on verbal claims.
FAQ: Faux Leather Breathability
Is faux leather more breathable than real leather?
Generally, no. Genuine leather breathes naturally due to its fiber structure. Microfiber leather is the only synthetic that approaches real leather’s breathability. Standard PU and PVC do not breathe at all.
Can I make non-breathable faux leather more breathable?
You can’t change the material itself, but you can:
- Use perforation
- Add breathable linings behind the faux leather
- Use thinner material
- Choose materials with breathable backings
What’s the best faux leather for summer clothing?
Microfiber leather or breathable PU with porous coating. Avoid standard PU and PVC—you’ll overheat quickly.
Do perforated car seats really make a difference?
Yes. Perforated car seats allow air circulation between your body and the seat, reducing sweat and that “sticky” feeling in summer. Combined with ventilation fans, perforated leather makes a noticeable comfort difference.
How do I know if a faux leather is breathable before buying?
Ask the supplier for:
- MVTR test results
- Whether the PU coating is formulated for breathability
- Sample to test yourself
If they can’t provide MVTR data, assume the material is not breathable.
Conclusion
Most faux leather is not breathable—that’s the honest truth. PU and PVC form plastic barriers that block moisture completely. However:
- Microfiber leather offers genuine breathability due to its fiber structure
- Perforation solves the problem for most applications
- Breathable PU formulations exist but require specific sourcing
For footwear, sportswear, and summer garments, choose microfiber or specifically-designed breathable PU. For furniture, automotive, and bags, standard PU or PVC with perforation works well.
Need help selecting the right breathable synthetic leather for your products? Contact us at cnmaterials.com—we can provide MVTR test data and material samples.
—
*Last updated: April 2026*