The socks offer comfort and stability with the non skid silicone grips. The bottoms have a soft non-slip silicone grip that provide excellent grip on smooth surfaces such as hardwood and laminant floors. High Quality Materials: Made of premium quality combed cotton and 100% silicone grips on the bottom. Natural cotton super sweat-absorbent fabric keep your feet dry. These socks provide comfort and grip while you do yoga, barre or circuit classes.