Big Star women's sneakers are made of a combination of textile and ecoleather. Slipon model with 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 extremely lightweight, which makes them even more comfortable to use! When choosing a size, please refer to the size chart.3623.5/3724.5/3825/3925.5/4026.5/4127cm