Steve Jurvetson had a video and picture of the latest DARPA Warrior Web exosuits from Harvard and SRI at a Feb, 2015 meeting.
The Harvard team uses linear actuators on the side of the backpack (instead of twisting filaments with the SRI team) to get a 10% net improvement in walking with load. The backpack is just a weight load; all of the actuators and batteries are in the black box.
SRI exosuit for DARPA warrior web
Harvard exosuit for DARPA warrior web
SOURCES – Youtube, Flickr, Steve Jurvetson
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