Stella McCartney follows the beat to the NOHARM drum with Italian made ethical vegan footwear.

At an appearance last week at her Barneys trunk show, British designer Stella McCartney dished to Insider about her latest collection and green ethics, as well as her ability to carry a tune (for the record: she claims she’s not bad). After a quick intro from Barneys Creative Director Simon Doonan (below, left, with the designer), McCartney talked about the difficulties her vegan-only standards create in accessories. “Our shoes are 70 percent more expensive to make because we don’t use conventional methods,” she said of her Italian-made line. “When you’re not working with leather, you really have to think outside the box.”