Introduction
In safety workwear, staying dry is more than a matter of comfort — it’s about performance and protection.
Modern waterproof garments must keep out external moisture without trapping body heat or sweat.
This balance between waterproof and breathable technologies is what makes high-performance rainwear truly effective for professional use.
Understanding Waterproof Technology
A waterproof garment prevents water penetration from rain or external moisture.
This protection is usually achieved through one or more of the following:
- Coated Fabrics (PU, PVC, or TPU): Provide strong water resistance and durability.
- Laminated Membranes (like PTFE or PU films): Offer lightweight waterproofing with more flexibility.
- Sealed Seams: Essential for preventing leaks through stitching areas.
✅ Tip: Always look for garments rated ≥5000mm hydrostatic pressure for reliable waterproof performance.
The Role of Breathability
While waterproofing blocks water from entering, breathability allows vapor (sweat) to escape.
This is measured by MVTR (Moisture Vapor Transmission Rate) — the higher the value, the better the breathability.
Why it matters:
Without ventilation, moisture trapped inside can make the worker feel wet and cold, reducing comfort and focus.
Finding the Right Balance
Achieving both waterproofing and breathability is challenging:
- Too waterproof: The garment becomes hot and non-breathable.
- Too breathable: It may fail under heavy rain.
The best solution lies in multi-layer fabrics, which combine:
- Outer shell: repels water
- Middle membrane: controls moisture
- Inner mesh lining: enhances comfort and airflow
Key Fabric Technologies
| Technology | Description | Ideal For |
|---|---|---|
| 210T PU Coating | Lightweight, economical, water-resistant | Light rain & short tasks |
| PVC Coating | Fully waterproof, heavy-duty | Construction & roadwork |
| TPU Laminate | High breathability + flexible | Long outdoor shifts |
| PTFE Membrane (e.g. GORE-TEX®) | Premium breathable waterproofing | Harsh, wet environments |
Testing Standards
- EN 343:2019 — European standard for rain protection, classifies waterproofness (X) and breathability (Y).
Example: EN 343:2019 Class 4:4 = highest waterproof and breathable level. - ISO 4920 / AATCC 35 — Measures water repellency and resistance to spray.
Choosing the Right Garment
- Identify working conditions — heavy rain, light drizzle, or intermittent exposure.
- Select fabric type — PVC for heavy duty, PU or TPU for mobility.
- Check seam sealing and hood design.
- Test comfort: inner lining should not stick to skin.
- Request certification reports (EN 343 / ISO 4920).
Conclusion
Modern waterproof and breathable workwear ensures safety, comfort, and performance in all weather.
Whether for road construction, logistics, or maintenance, choosing the right balance of materials will keep your team dry and productive.
Call to Action
Need durable waterproof and breathable garments for your team?
👉 Contact RickySafety for OEM/ODM rainwear solutions that meet EN 343 and ANSI standards.