D30 is a shock absorbing material. It contains intelligent molecules that flow during movement but lock together on impact to absorb impact energy.
The Ministry of Defence has released pictures of new technology it is developing, or hopes to develop.
The images were released alongside the Defence Technology Plan, which sets out the MoD’s long-term research needs. It aims to encourage tech companies and academics to come up with the next generation of flying, spying robots and new lightweight tanks.
Quentin Davies, minister for defence equipment and support, said exploit new technologies is "vital" for battlefield success.