RAB Xenon X Insulated Jacket

We’ve read the reviews across the web for the RAB Xenon X Insulated Jacket and summarize the results below:

Universal Ranking

PeakScore: 87 (out of 100) 
User Rating: 4.4 stars
Expert Rating: 4.3 stars
Number of Ratings Reviewed: 71


Pros & Cons

Reasons to buy:

User Reviews

  • Very warm and pretty lightweight.
  • Packs down small.
  • Less stitching than the Nano Puff which means it is more durable and warmer.
  • Hood looks funny but is nice and snug and warm.
  • Outer layer is durable and doesn’t tear easily.

Expert Reviews

  • This jacket epitomizes fast and light.
  • Minimal stitching allows for greater loft from the insulation.
  • Best wind resistance of jackets in this class.
  • One of the warmest jackets in this class.
  • Incredible weight-to-warmth ratio.
  • Easy to pack into itself.
  • Other than high energy activities that require a lot of breathability, this jacket does it all.
  • Incredibly cozy to wear.
  • Well thought-out zipper placement.
  • Pockets have soft insulation all around the inside.
  • The size of the jacket stuffed into its own pocket actually allows it to be a decent backpacking pillow.


Reasons NOT to buy:

User Reviews

  • Rab customer service is poor compared to Patagonia or Arcteryx.
  • It has a weird fit.
  • The zipper is on the opposite side from what most Americans are used to.
  • Doesn’t breath as well as some competitors.
  • Arm holes (at the shoulder) are too small.
  • Colors aren’t true to their names.

Expert Reviews

  • Doesn’t breathe very well.
  • Brighter colors have a bit of a shiny look to them.
  • The zipper being on the other side is annoying.


The RAB Xenon X Insulated Jacket is warm, weather resistant, and comfortable. It trades a lack of breathability for superior insulation. This jacket is a terrific mid-layer option that can even fill-in occasionally as an outer layer.


Note: User rankings were reviewed across the web and expert rankings were reviewed on outdoorgearlab, backpackers.