Outdoor Research Men's Helium Rain Jacket
At just 6.5 ounces, the Outdoor Research Helium Rain Jacket is the ultralight emergency shell that thru-hikers and gram-counters swear by. The Pertex Shield Diamond Fuse fabric delivers genuine waterproofing in a package that stuffs into its own chest pocket — smaller than a grapefruit. It's not the jacket for all-day Sierra storms, but for the 80% of hikes where rain is a 'maybe,' the Helium disappears in your pack until the first drops fall. The adjustable hood fits over a climbing helmet, and the elastic cuffs seal out wind without velcro snagging. When every ounce counts, this is the shell you actually bring.
Check Latest Price on Amazon →Why You Need This
You're 8 miles into a 20-mile day and the clouds roll in. Your pack is already too heavy. You need rain protection that doesn't feel like carrying a second tent.
Pros & Cons
✅ Pros
- Ultralight at 6.5 oz — lighter than most smartphones
- Packs into chest pocket to the size of a grapefruit
- Pertex Shield Diamond Fuse is genuinely waterproof, not just DWR
- Hood adjusts to fit over climbing/bike helmets
❌ Cons
- Not for sustained heavy rain — works best as emergency/occasional shell
- No hand pockets — chest pocket doubles as stuff sack only
- Premium price for a specialty piece ($159)
🎯 Who Is This For?
Ready to Buy?
Check the latest price and availability on Amazon. Prices are accurate as of the date listed and may change over time.
Check Latest Price on Amazon →Compare with Alternatives
