Mark down another victory for the eco-conscious fashionista (there are too many to count). Gucci announced this morning that it will be launching a new line of environmentally friendly shoes for pre-fall 2012. The two styles—a ballerina flat for women and a sneaker for men—are made entirely of biodegradable plastic rather than the leather and suede that have proved so popular for the Italian label. With a playful look and and range of neutral colors, the line—with the cheeky name Sustainable Soles—marks the entrance of one of the world’s most iconic brands into the burgeoning green market, one that is currently dominated at the high-end by Stella McCartney (which is partly owned by Gucci’s parent PPR Group). The shoes will be available, along with the rest of the pre-fall collection, in Gucci stores and online at the end of June.