The high temperature in Phoenix was 107 degrees and the low was 87 degrees that day, according to National Weather Service.

Robert F. Kennedy Jr.'s unconventional attire while hiking Camelback Mountain in Arizona elicited mixed reactions online, ranging from amusement to concern over his choice to wear jeans in the heat.

It's not often that one sees a member of the president's cabinet hiking in Phoenix on an otherwise average weekend day, but what Robert F. Kennedy, Jr. was wearing during his Camelback Mountain hike on July 19 sparked discussions online.