Elite Protection. Barely There Weight.

The Outdoor Research Men's Helium UL Jacket is a premium ultralight waterproof shell built for fast-moving adventures where every gram matters.

Using advanced Toray Dermizax™ 2.75-layer fabric, it delivers exceptional waterproof protection, breathability, and stretch, all in a remarkably lightweight package starting from just 152g.

Whether you're trail running, fastpacking, or moving quickly through alpine terrain, this jacket provides serious weather protection without slowing you down.

Why You'll Love It

• Ultra-Lightweight - From just 152g
• Premium Waterproofing - Advanced Dermizax™ fabric
• Highly Breathable - Built for movement
• Fully Seam-Taped - Complete weather protection
• Minimalist & Packable - Always ready in your pack

Key Technologies

Toray Dermizax™ 2.75L

• Waterproof & windproof protection
• High breathability for active use
• Flexible and durable performance fabric

Key Features

• Adjustable hood with brim wire:
  • Maintains structure in wind and rain
  • Improves visibility and protection
• YKK® Aquaguard® front zip:
  • Water-resistant closure
  • Durable and reliable
• Elastic drawcord hem:
  • Seals out the elements
  • Customisable fit
• Shaped bonded cuffs with partial elastic:
  • Clean, low-bulk fit
  • Keeps sleeves secure
• Reflective logos:
  • Improved visibility in low light

Fabric Performance

• Waterproof
• Windproof
• Breathable
• Fully seam-taped
• Ultralight

Specifications

• Weight:
  • S: 152g
  • M: 159g
  • L: 169g
  • XL: 177g
• Construction: Dermizax™ 2.75-layer waterproof fabric

Performance Benefits

• Exceptional protection for its weight
• Ideal for fast-paced movement
• Packs down small for easy carry
• Comfortable across changing conditions

Perfect For

• Trail running
• Fastpacking
• Ultralight hiking
• Travel
• Alpine missions where weight matters