100% post-consumer recycled polyester Eco P.E.T. Micro Twill with 63% nylon/23% Eco-carbon/14% lycra 13oz Eco-stretch. A lightweight fabric derived from multi source recycled polyesters is accented by four way stretch contrast insets constructed with activated carbon Þ bers. A windproof body, moisture wicking and odor management panels take this jacket to the next level of technical performance and environmental consciousness.