We’ve read the reviews across the web for the Outdoor Research Helium II Jacket – Men’s and summarize the results below:

Universal Ranking
PeakScore: 87 (out of 100)![]()
User Rating: 4.5 stars ![]()
Expert Rating: 4 stars ![]()
Number of Ratings Reviewed: 636
Pros & Cons
Reasons to buy:
User Reviews
- Waist adjustment strap and hood-adjustment cord at the back of the hood allow for adjustability.
 - Very lightweight – only 6.4 ounces!
 - Waterproof due to Pertex Shield+ 2.5L 30D ripstop nylon and sealed seams.
 - Zippered pocket on chest and velcro pocket inside the left-hand side.
 - Internal pocket features small loop for attaching keys.
 - Easy to store into a pack.
 - Able to stuff into own pocket for compressibility.
 - Waterproof zippers.
 
Expert Reviews
- Features the water-resistance of a rain jacket, combined with the weight of a wind jacket.
 - Two reflective-patches increase safety when exercising outside.
 - The elastic cinches on the hood extend up to the temple and not across the brow.
 - Chest pocket features as a “stuff pouch” with a clip-in loop for a harness.
 
Reasons NOT to buy:
User Reviews
- The material can feel clammy during perspiration.
 - Elastic wrist openings, but no wrist-adjustment straps, leading to some air escaping or rain entering.
 - Not especially breathable.
 - Will need to size-up if want to wear layers underneath and not be too snug.
 - No pit zips.
 - Some reports of tight shoulders and sleeves when purchasing true to size.
 - Jacket doesn’t reach very long in the back.
 
Expert Reviews
- Loose wrist cuffs can allow heat to escape.
 - Does not have any specific ventilation features.
 - Does not have any comfort features, such as a micro-fleece chin strap.
 - Runs slightly snug, and is a slim-fitting jacket, so should be aware when purchasing.
 - Length is a bit short for tall people and can ride up when raising arms.
 
Summary:
The Outdoor Research Helium II Jacket for men is a great option for those who want a very lightweight rain jacket. While not super breathable, the feather weight and stripped down feature-set are ideal for fast and light outdoor activities.
