Calgary, Kanada - 21 června 2015: Sportovci mají Přátelské skateboard závody. Kalifornie zákon vyžaduje, aby osoby mladší 18 nosit helmu při jízdě na skateboardu. - Stock fotografie a obrázky

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard Show Off in Calgary. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

Calgary, Canada - Jun 21, 2018: Athletes have a friendly skateboard Show Off in Calgary. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard Show Off in Calgary. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

Calgary, Canada - Jun 21, 2018: Athletes have a friendly skateboard Show Off in Calgary. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competition in Calgary. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competition in Calgary. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.

CALGARY, CANADA - JUN 21, 2015: Athletes have a friendly skateboard competetion. California law requires anyone under the age of 18 to wear a helmet while riding a skateboard.