Air-Conditioned Flak Jackets Could Keep Cops Cool In the Summer
Empa , a Swiss materials company , hascreated an airwave - condition bulletproof vestbased on Coolpad technology that could help keep constabulary officers coolheaded in the simmering , mind - melting summer rut . Water - fill pads are build into the waistcoat and vaporise through the membrane to help cool down the wearer . Behind the diggings , a little fan adds more ventilation . There were a few challenges in making this turnout ....