Dezeen – A San Francisco-based footwear startup has launched a flip flop with a sustainable sole made from sugar cane.Shoe soles are typically made from petroleum-based EVA (ethylene-vinyl acetate) plastic foam – a highly polluting substance. But Allbird makes its Sugar Zeffers flip flops using a carbon neutral EVA, made from sugar cane grown densely in south Brazil with minimal fertiliser. – read more