Big Star women's sneakers are made of textile material. This model is slip-on and has additional lacing. The Memory Foam System remembers the shape of the foot, provides a perfect fit, shock absorbing, deformation resistant and allows moisture evaporation and temperature control. These shoes are great for everyday wear because they are light and comfortable. When choosing a size, refer to the size chart.36-23,5/37-24/38-25/39-25,5/40-26,5/41-27cm