Reactive Impact Suit

A full-body suit lined with a non-Newtonian material that stays soft and flexible during ordinary movement but stiffens almost instantly on a sharp impact, spreading the force of a blow across the lining rather than concentrating it at the point of contact.

The reactive lining offers no benefit against a slow, sustained pressure or a bladed edge, so it excels specifically against blunt strikes and falls rather than serving as general-purpose protection.