Technology

What is PrimaLoft®?

From active insulation that adapts to your body’s output to loose-fill insulation that mimics the structure of down, we use a variety of PrimaLoft synthetic insulations in our gear.

Active Insulation

PrimaLoft® Active Evolve comes in varying thicknesses and lengths, creating highs and lows within the loft. This design traps warm air while allowing excess heat to escape.

Static Sheet Insulation

PrimaLoft® Gold Insulation with Cross Core blends aerogel for ultra-lightweight warmth and compressibility, delivering comfort in harsh conditions.

Loose Fill Insulation

PrimaLoft® Silver Insulation is made from 100% recycled materials and engineered to mimic down, offering exceptional loft and warmth.

PrimaLoft insulation detail PrimaLoft loose fill insulation

What is eVent?

We have partnered with eVent to bring you waterproof and windproof gear you can trust in the most challenging mountain environments.

eVent jacket in alpine environment eVent fabric detail

The Demand for PFAS-Free Solutions in Outerwear

The outerwear industry is shifting toward PFAS-free solutions as brands and consumers prioritize environmental sustainability without compromising performance.

eVent fabrics’ alpineST™ technology delivers waterproofness, breathability, and durability without PFAS-based chemistries.

Waterproof breathable fabric layers

Differences Between 2L, 2.5L, and 3L Waterproof-Breathable Fabrics

2L: Lightweight and Flexible

Designed for those who prioritize comfort and packability. Ideal for hiking, cycling, and light outdoor activities.

2.5L: Versatile Protection

Balances weight, breathability, and protection. Perfect for dynamic environments and moderate weather conditions.

3L: Maximum Protection and Durability

Built for extreme conditions. Superior durability and weather resistance for mountaineering and alpine expeditions.