Let's face it. The iPhone 4 is a lot of things; sexy, quick, useful, expensive - but there's also a lot of things that it's not.

And one of the things it sorely lacks is a bit of ruggedness. In terms of toughness, the iPhone 4 is more Mr Muscle than Mr Perfect. It's got glass on both sides for Pete's sake - who in their right mind thought that was a good idea for a product that gets dropped more often than Didier Drogba?

Luckily, Griffin has just announced a new case that brings a bit of steel to the iPhone 4 toughness table.

The Survivor Extreme Duty case is the the UK’s only military endurance certified iPhone and iPod case and has been designed to withstand even the toughest of environments.

We're talking dirt, sand, rain, shock, vibration, and a host of other environmental factors up to Department of Defence Standard 810F and UK Department of Defence Standard 00-35.

“Griffin always tests, abuses, and destroys its products to see what they’re capable of,” said Griffin's Tony Johnson.

“We’ve dropped a Survivor clad phone, thrown it against, and sometimes through, walls but can’t seem to damage the iPhone inside. Of course, we don't suggest you do this at home.”

The case is built on a shatter-resistant polycarbonate frame clad in rugged, shock-absorbing silicone, and has a built-in screen protector and hinged plugs as well

Available for iPhone 4 and iPod touch (4th generation) in a variety of colours, the Survivor is out now priced at £34.99 and £29.99 receptively.