Why Shell+™ is the Sustainable Choice for Wind and Water Protection

August, 2025 | icebreaker

When facing unpredictable mountain weather, a reliable outer layer is non-negotiable. icebreaker’s Shell+™ redefines protection with a non-PFC DWR finish that combats wind and light rain—without relying on plastic-based membranes. Perfect for hikers, climbers, and alpine explorers who prioritise performance and the planet.

The Innovation Behind Shell+™: Plastic-Free Performance

Unlike conventional shells that use synthetic laminates, Shell+™ leverages:

● Merino wool-blend outer fabrics for natural breathability.
● Bio-based water-repellent finishes, free from toxic PFCs.
● Wind-resistant weaving techniques to reduce reliance on petrochemical layers.

Traditional waterproofs trap heat, but Shell+™’s breathable merino lining regulates temperature naturally.

Shell+™ vs. Synthetic Shells: A 3-Day Trek Comparison

We tested Shell+™ against a leading synthetic shell in wet, windy conditions:

Factor	Shell+™	Synthetic Shell
Weatherproofing	Repels light rain & wind	Relies on PFC coatings
Breathability	Merino wicks moisture	Traps sweat with less airflow
Eco-Impact	Biodegradable materials	Petrochemical-derived

Why it matters: PFCs in synthetic shells persist in ecosystems, while Shell+™ aligns with icebreaker’s Move to Natural™ mission.

Intended Use

● Ideal for: Hillwalking, alpine trekking, and coastal paths in variable conditions
● Temperature range: -5°C to +15°C (with appropriate layering)

Real Feedback from our customers

"On my week-long trek through the Scottish Highlands, the Shell+™ jacket handled relentless wind and rain perfectly. What amazed me most was how it kept me dry without any of that sticky, clammy feeling I used to get with my old synthetic jacket - the natural merino lining really makes all the difference."—a Shell+™ User

Ready to explore sustainably? Shop Shell+™ now