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Sandra Wallet, 24, is a psychomotor therapist and a model from Nouvelle-Aquitaine, France. She holds a master’s degree in rehabilitation research.

In 2023, Wallet graduated from the Université de Bordeaux in Bordeaux, Nouvelle-Aquitaine. In 2024, she founded a nonprofit in Bordeaux called Renaissance Intergenerationnelle.

Currently, Wallet is pursuing a master’s degree in healthcare facility management, specializing in public health. She will represent France in the 25th edition of Miss Earth.

Miss Harmony France 2024

As Miss Harmony Nouvelle-Aquitaine 2023, Wallet represented Nouvelle-Aquitaine at Miss Harmony France 2024 in Pompey, Lorraine, Grand Est, France. On September 24, 2023, she competed against eight other candidates including Laureen Laffon of Provence-Alpes-Côte d’Azur, who won the title.

Runner-up to Laffon was Wallet. The respective second and third runners-up were Anaël Meunier of Bourgogne-Franche-Comté and Aurélie André of Auvergne Rhône-Alpes.

On September 28, 2024, Laffon crowned her successor Miss Harmony France 2025 Justine Guichard of Nouvelle-Aquitaine in Salon-de-Provence, Provence-Alpes-Côte d’Azur. On April 12, 2025, Wallet served as a judge at Miss Harmony Auvergne Rhône Alpes 2025 in Saint-Geoire-en-Valdaine, Isère, Auvergne-Rhône-Alpes, France.

Miss Earth 2025

On July 6, 2025, Wallet represented Nouvelle-Aquitaine at Miss Earth France 2025 and competed against 20 other candidates at Salle des fêtes d’Oberroedern in Oberrœdern, Bas-Rhin, Grand Est. She won the title.

Runner-up to Wallet was Pauline Mouchard, who was crowned Miss Earth France Air 2025. Also crowned were Miss Earth France Water 2025 Chloé Marie and Miss Earth France Fire 2025 Lenna Thome.

Wallet will represent France at Miss Earth 2025. The date and venue of the coronation ceremony have yet to be announced.

This marks the silver anniversary edition of Miss Earth. Among Wallet’s fellow candidates are Kleja Sulejmani, 20, of Albania, Jera Redant, 18, of Belgium, Natálie Puškinová, 21, the Czech Republic, Sofia Mayers, 25, of England, Amanda Niemi, 24, of Finland, Sóldís Vala Ívarsdóttir, 19, of Iceland, Sanne-Esmee Walstra, 21, of the Netherlands, Raquel Camelo, 23, of Portugal, Nina Karapešev, 19, of Serbia, María Victoria Medina, 26, of Spain, Tilde Lööw, 26, of Sweden, Maria Zheliaskova, 24, of Ukraine and Abigail Wood, 25, of Wales.