http://www.amazon.com/gp/product/B008GXFL9I

Trellis Earth film products are unique in that they incorporate a polymerized plant starch, greatly reducing the environmental impact of carry sacks and trash liners. The polymerized plant starch makes these bags sturdier and stronger than conventional plastic bags. It is made from 70 percent plant starch, are recyclable (where facilities are available) and contain a high percentage of renewable material. Bags were engineered to breakdown in the presence of other bioactive material in a landfill, making them a practical, cost efficient and thoroughly sustainable alternative. Our bags have handle cuts for check-out wickets and they are designed to be easy to open so upgrading to Trellis T-shirt bags is easy. Measures 12-inches length by 21-inches width by 1.1 mil thickness.