[GLASSY Knit Sole Cover Features] The double layer construction of cotton and fleece fabric is thick, so the soles and edges of the board are well protected. ■ The outer cotton fabric and the inner fleece fabric are both stretchy and the entire fabric stretches well, so it can accommodate a wide range of board sizes. ■ The outer fabric is made of cotton fabric that feels good on the skin and the texture will look better as you use it. ■ The inner fabric is made of breathable and quick drying fleece fabric, so the edges will not rust. Care Instructions: Please do not use a washing machine or dryer. Color transfer or fading may occur if used in wet conditions. Fabric may shrink slightly when washed with natural materials, such as cotton.