And now the boffins at Adidas have taken the material used to absorb the impact of bullets and shrapnel and stuck it on a pair of football boots.
More after the break
The Adidas Nitrocharge has been reinforced with Kevlar technology to make it more resilient to collisions – ideal for Sunday League players trying to protect themselves against two-footed lunges and nasty stamps.
How will it shield sensitive tootsies from flying studs? Kevlar is forged with aramid, a class of heat-resistant and strong synthetic fibres, which are bonded closer together, making them harder to penetrate.
Premier League players such as Jack Rodwell – who wears the boots – might be wise to slip on a pair when facing Charlie Adam, but mere mortals of park football will have to be quick to snap up the armour-plated beauties.
Only 400 pairs of these Nitrocharges will be available in the UK and they’ll damage your wallet to the tune of £220. Not cheap, but better than carrying a severed foot to A&E.
The gold Nitrocharge boots are available to buy at prodirectsoccer.com