The Girl Scouts standing next to Hillary wer wearing short sleeved shirts and shorts.
Do you know what is causing the very visible bulge on Hillary's back?
Hillary has a history of blood clots with a cerebral venous thrombosis in 2012 likely caused by her concussion. It could have caused a stroke, or neurological damage.
Hillary has had two falls in recent months, both resulting in injuries, shows she has a health issue and wearing a defibrillator vest to prevent a stroke makes sense.
Hillary also wore a heavy coat and scarf in Boston where the temp was around 90 when she received the Radcliffe Award.