My youngest daughter and her husband live in Chicago. She has one little boy with another on the way. Her son is 2.5 years old and goes to his school/daycare there. After retuning home from school he wanted to ride his bike on their rooftop deck and determined it was too hot. So he took measures in his own hands to be able to ride and be cool at the same time.
Keep Cool!
Spacial Peepol 