EU: 41 US: 10 UK: 7.5 COMPOSITION: Upper: vegan suede made with recycled fibers. 51% recycled polyester, 49% conventional polyester. Lining and insole: Vegan, breathable and antibacterial skin appearance. 20% Viscose 55% PU 35% polyamide Insole: Soft and removable insole. Sole: Manufactured with expanded EVA rubber, a very light material that allows to achieve volume without adding weight. Measurements or length of the interior of the shoe: 41: 27.6cm OUTSOLE HEIGHT: 5cm