Why We Love the Outdoor Research Helium AscentShell Jacket

When it comes to weight and breathability, the Outdoor Research Helium AscentShell Jacket is our go-to choice for fast-and-light alpine adventures. It outperforms heavier hard shells by combining the lightweight durability of Pertex Diamond Fuse fabric with the air permeable and highly breathable waterproofing of a 3-layer AscentShell membrane. The result is a jacket that is both lightweight and breathable, while also being weatherproof enough to withstand harsh conditions.

Not only does the Helium take up minimal space in our packs, but it also layers easily between our mid-layers, backpacks, and harnesses. This makes it perfect for high-output activities in the mountains.

Key Features

• Pinnacle protection without the added weight
• Pertex Shield technology provides highly breathable waterproof protection
• DWR finish repels rain and snow
• Pertex Diamond Fuse fabric is lightweight yet abrasion-resistant
• Dynamic Reach underarm panels enhance arm mobility
• Fully adjustable hood that is compatible with helmets
• High hand pockets placed above hip belts and harnesses
• Designed with the best climbing fit among Outdoor Research hardshells

Material: [membrane/laminate] AscentShell (3-layer), [face fabric] 30D nylon ripstop

Seams: fully sealed

Fit: regular

Length: hip

Center Back Length: 29in

Hood: helmet-compatible

Pockets: [exterior] 2 zippered hand, 1 zippered chest, [interior] 2 mesh shove-its, 1 zippered chest

Claimed Weight: 10.5oz

Activity: climbing, hiking, mountaineering

Manufacturer Warranty: lifetime