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