Mariela Schwarz Montiel, originally from Paraguay and now living in France, launched Carlotha Ray in 2019. Inspired by her grandmother Carlotha Despierre de Montiel, known for her community work and environmental efforts in Paraguay, Mariela created a sustainable flip-flop brand. Carlotha Ray flip-flops are luxurious and durable, crafted in Italy from organic materials like natural latex and eggshells from organic waste, promoting harmony with nature.