This is a preview of a member exclusive premium article.
Simply put, the Sierra Designs Isotope is the lightest woven fabric waterproof/breathable jacket currently available, and the pants are not far behind. Actually the Isotope is lighter than most non-woven fabric rainwear. More amazing yet is that it's full-featured, not Spartan as you might expect.
--- End of free preview ---
Member Exclusive
A Premium or Unlimited Membership* is required to view the rest of this article.
* A Basic Membership is required to view Member Q&A events
