Trying to bring a tougher image to environmentalism, a caped Eco Knievel jumps an electric-powered bike over a Toyota Prius at the Maker Faire in San Mateo on Saturday.

Eco Knievel was the brainchild of Chris Lindland, founder of online clothing company Betabrand, and Saul Griffith, co-founder of research and development company Squid Labs.

Donning a star-spangled cape, Eco Knievel – an experienced BMX rider whose real identity was kept confidential – was originally scheduled to be jumping over one or two gas-guzzling Hummers. Alas, organizers went to the eco-friendly Prius in the event at the San Mateo County Event Center.