An Amputee and His Revolutionary Bionic Leg

Sun, on crutches, as a young man.

A trip to the famed cherry blossoms on the banks of Miyagi Prefecture’s Shiroishi River.

In the lab at University of Tokyo.

Winning the Interactive Innovation Award at SXSW.

Sun wanted the prosthetic to be fashionable.

BionicM is based in the University of Tokyo’s “entrepreneur lab.”

Sun plays soccer with a prosthetic he designed himself.