The ReMotion Knee came into existence when India’s Jaipur Foot Clinic—an organization that provides free limbs and crutches to the disabled— approached a Stanford University class about building a better knee. The design contains best-in-class technology and yet is far cheaper than other prosthetics on the market. Working with doctors, patients, designers, engineers, manufacturers, and suppliers from inception to distribution of the product, the ReMotion Knee has now been fit on over 5,000 amputees in 12 countries–and 79% of amputees are still wearing the knee. With a goal to double their impact by 2015, D-Rev is well underway in returning stability and dignity to people who earn less than $4 a day.