CALGARY, CANADÁ - 21 DE JUN DE 2015: Los atletas tienen una competencia de patineta amistosa. La ley de California requiere que cualquier persona menor de 18 años use un casco mientras monta un monopatín . - Foto e imagen de stock

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.

MOSCOW - 15 MAY, 2016 : Street skateboarding contest by Levi's and Traektoriya boardshop. Skaters riding concrete skate park Sadovniki

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.

Nancy, France - September 2, 2020: Young people practicing on a skater place, jumping inline skater

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.

Young skaters practicing in Heykel Square in Bursa, the forth largest city of Turkey

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 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, 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.