© Getty Images 1/4 Crown Princess Mary on sustainable The royal is calling on fashion companies to be more conscious about the choices they make when it comes to producing textiles and fabrics. © Getty Images 2/4 Princess Mary Style Crown Princess Mary opened up about the importance of sustainability in fashion. © Getty Images 3/4 Crown Princess Mary and Princess Frederick The crown princess wears recycled pieces to both formal engagments and private events. © Getty Images 4/4 Crown Princess Mary kids The mother-of-four said that she keeps pieces that she can pass on to her daughters. © ¡HOLA! Prohibida la reproducción total o parcial de este reportaje y sus fotografías, aun citando su procedencia. Más sobre: Crown Princess Mary Royal Style Tionah Lee Más noticias sobre Crown Princess Mary Crown Princess Mary of Denmark welcomes new member to the royal family! Queen Margrethe and Prince Henrik celebrate upcoming 50th wedding anniversary with their 8 grandchildren Crown Princess Mary wears one of Kate Middleton's go-to designers, while more European royals stun at... European royals flock to Norway for Queen Sonja and King Harald's joint 80th birthday celebration