Big Star shoes have a material upper thanks to which they are comfortable to use. This model is a slipon. Sneakers have a Memory Foam System insert that remembers the shape of the foot which ensures a perfect fit absorbs shocks and is resistant to deformation. The structure of the foam allows moisture to evaporate and the temperature to be regulated. Embedded on a delicate platform. Perfect for walks in the park or to work or school! When choosing a size please use the size chart.3623/37235/38245/3925/40255/41265 cm.