Lightweight insulation for year-round mountain use

The Mountain Equipment Intra Light Men's Jacket combines Helium 20D outer fabric with 40g m⁻² Aerius™ synthetic insulation to deliver a highly versatile balance of warmth, breathability and wind resistance. Built for climbers, hikers and ski tourers, it performs as a lightweight outer layer in stable conditions and layers comfortably beneath a shell when facing more demanding mountain weather. Its soft, compressible construction makes it equally suited to active pursuits and recovery periods at the end of the day.

Performance & Engineering

• 40g m⁻² Aerius™ Synthetic Insulation – Engineered with high-resilience hollow fibres and fine-denier fibres to create a lofty, lightweight insulation package that delivers excellent warmth-to-weight performance without compromising packability.

• HELIUM 20D Fabric – Built with HELIUM 20D fabric to provide wind resistance, low weight and exceptional breathability when ski touring, alpine climbing or covering long distances on foot.

• Insulated Mountain HC Hood – Designed with rear adjustment and helmet compatibility to provide additional protection during exposed mountain travel while maintaining freedom of movement.

• Alpine Fit Construction – Engineered with articulated, pre-shaped sleeves and an alpine fit to support unrestricted movement on technical terrain while allowing effective layering beneath a shell.

• Mountain-Focused Features – Built with a YKK® Vislon® front zip, insulated zip baffle, 2 zipped hand pockets, 1 chest pocket, stretch cuffs and dual-tether hem drawcords to improve comfort and keep essential items accessible in changing conditions.

Technical Specifications

• Ideal For: All Mountain, Ski Touring, Rock Climbing
• Main Fabric: HELIUM 20D fabric with 40g m⁻² Aerius™ synthetic insulation
• Weight: 380g / 13.4oz
• Hardware: YKK® Vislon® centre front zip with insulated baffle
• Pockets / Features: 2 zipped hand pockets, 1 chest pocket, insulated Mountain HC Hood with rear adjustment, durable water-repellent (DWR) finish, stretch cuffs, dual-tether hem drawcords, lightweight stuff sack, helmet-compatible hood
• Fit: Alpine fit with articulated and pre-shaped sleeves

Care & Longevity

Hand wash or machine wash at 30°C using liquid detergent or a specialist cleaner. Tumble dry on a low heat with a slow spin speed and store in a cool, dry place away from direct sunlight. Avoid fabric conditioners, high drying temperatures and prolonged exposure to direct sunlight to help maintain insulation loft and the DWR treatment.