Just recently Reebok introduced with their newest collection called Cotton+Corn. These are first shoes, which are made of Cotton + Corn and is USDA Certified Biobased, and of course, they are wrapped in 100% recycled packaging. Usually, athletic shoes are made by using petroleum, which of course is not sustainable, thus Reebok is the first known large company, which turn their eyes to more sustainable manufacture. Good guys, Reebok.