In recent years, microporous membranes have become a focal point in textile technology. Their unique structure prevents liquid water penetration while allowing vapor to pass through, creating the critical balance of waterproofness and breathability.

Two materials in particular are drawing attention:

• ePE (expanded Polyethylene membrane)
• PP (Polypropylene membrane)

Both are PFAS-free, yet they follow distinct development trajectories.

ePE: An Emerging Sustainable Choice

Its PFAS-free nature directly responds to stringent environmental regulations in Europe and the U.S. With high elongation and flexibility, ePE is gradually being introduced by brands into outdoor gear and design-led applications.

• Strengths: Regulatory compliance, market buzz, comfort in wear.
• Challenges: Often requires PU lamination to maintain waterproof performance, adding weight and complicating recyclability.
• Applications: Hiking gear, snow jackets, lightweight windbreakers.

PP Membranes (Porlite®): Performance Meets Sustainability

Porlite® PP is regarded as one of the purest and most environmentally friendly membranes available. Like ePE, Porlite® PP is PFAS-free, yet it goes further with a lower carbon footprint and greater recyclability potential. Its finer pore structure enables higher hydrostatic resistance and superior breathability, while Hwafune’s exclusive LDWR technology enhances durable water repellency, ensuring protection even under extreme climates and demanding use cases.

• Strengths: High performance, weather resistance, circular-economy alignment.
• Challenges: Limited scratch resistance; market visibility is still maturing, though recognized in professional sectors.
• Applications: Watersport protective wear, mountaineering jackets, outdoor gear.