The side window shade is breathable, simply to roll up and down the window after you put them on. Custom-fit sunshade size to full cover your car front side window and easy installation. 【High Quality Material】: ULROLIT window sunshade is made of 210T Reflective Fabric and coating composite polyester, double-layer includes black heat insulation layers and silver reflective layers, 99% SPF for better heat dissipation.