Extreme snowmobiler Chris Burandt says doing a backflip on a snowmobile is difficult because everything is backward as you try to flip a 450 pound machine.  But like everything else, riders get used to it the more they do it. There are fewer than a dozen athletes who can perform it.  But, rest assured, these athletes don't dare perform these stunts with out proper protective gear.  Chris Burandt gears up with the following:

Gloves, Helmet, Chest/Back Pads, Shoulder Pads, Elbow/Arm Pads, Padded Shorts, Leg Pads, and Boots. 

Whether you're an extreme athlete performing daring stunts, or a weekend warrior, it is always in your best interest to gear up with those that Burandt is wearing.