Ice shoes

Walking on ice in the winter can be very dangerous, especially frozen lakes, streams and rivers.  The primary danger comes from breaking through and getting stuck in the water where you cannot get out.  In a river you could even get sucked down by the current under the ice and be trapped  Breaking through occurs when too much weight/force is focused in one place like when someone is standing or running on the ice.  A solution is to wear a type of shoes that spreads one's body weight evenly over a large area.  This would be useful to people who need to cross questionable ice areas, and emergeny responders who need to help people whp have already broken through.  This is taken from the idea of a water skater bug.