From Zeal via Vimeo:

For Fall 2013, ZEAL Optics is introducing the revolutionary ACE, a new sunglass made from cotton-based materials that completely biodegrades. ACE is the greenest sunglass in the world.

ACE is produced from 100% US grown cotton. After harvesting the plant from farms all across America, we ship the cotton to Italy’s renowned Mazzucchelli family. We rely on their deep knowledge and refined skills honed over generations to bring to life a sun- glass like never before.