Absolutely the umbrella type. It's all about me all the time, there is no consideration of others anymore. In March, there was this tiny newborn being held by her mother. Her grandmother took charge of the double-wide jogging stroller, came through the front door of the bus, folded the stroller but it couldn't fit down the aisle. So they just left it there in the front of the bus COMPLETELY blocking the aisle. God forbid we make another stop! Unbelievable.