SD Isotope Jacket reviewed by Fitness
June 1, 2009
Fitness Magazine"Waterproof yet breathable, the Isotope Jacket from Sierra Designs weighs only 4.8 ounces and folds up to fit in your palm."

"Waterproof yet breathable, the Isotope Jacket from Sierra Designs weighs only 4.8 ounces and folds up to fit in your palm."
