Protect your flimsy human body in Portal 2 boots seen in this new trailer

In this, the fourth Aperture Investment Opportunity, the lab behind Portal 2 wants you to consider purchasing a new set of boots.

Unless you want to die horribly, of course. ...

Source:
http://pixelbean.com/2011/04/protect-your-flimsy-human-body-in-portal-2-boots-seen-in-this-new-trailer-2/