Big Star women's sneakers are made of a combination of fabric and eco-leather. The shoes also have a reinforced heel. The sneaker has a Memory Foam System that remembers the shape of the foot, provides a perfect fit, absorbs shocks, is resistant to deformation and allows moisture evaporation and temperature control. The shoes were set on a platform and a flat heel. When choosing a size, refer to the size chart.36-23/37-23.5/38-24.5/39-25/40-25.5/41-26.5cm