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The competitive sport of Roller Derby is comprised of strong, diverse and empowered women from cities across the globe. Their approach to diversity, body positivity and inclusion is something we could all learn from. Subscribe to HuffPost today: http://goo.gl/xW6HG Get More HuffPost Read: http://www.huffingtonpost.com/ Like: https://www.facebook.com/HuffingtonPost Follow: https://twitter.com/HuffingtonPost