iSuperb Heat Resistant Flame Retardant Oven Mitts BBQ Gloves Potholder (1 Pair) (black) silicone Inner layer is made of CVC (chief value of cotton), which is soft, making your hands feel comfortable. Outer layer is made of silicone and T/C (terylene/cotton), which stands high temperatures. Heat resistant up to 425 Degrees Fahrenheit and flame retardant, Machine washable. Easy to clean. No-slip, Silicone grid design to ensure your movements safer. 11 long, 7  wide with handy hook for hanging.