Ключевые слова: 2020, activity, adult, asphalt, athlete, back, boots, city, competition, cone, europe, event, exercise, feet, finish, foot, gray, helmet, legs, line, male, man, nordic, off, orange, people, poles, race, racer, road, roller, rollers, rollerski, running, season, skating, ski, skier, skiing, skiroller, sport, stick, summer, traffic, training,