【Silver Fiber Grounding Technology】20% Silver Fiber+ 60% Cotton+ 20% Spandex. Merisky conductive grounding socks keep you grounded while wearing your grounding shoes, or when walking directly on the ground without footwear 【Easy to Use】Put on the Socks. Place your feet on an Grounding product (such as Grounding Mat, Sheets) that’s already plugged into a grounded outlet. This is a great way to be grounded while keeping your feet warm 【Easy to Care】Machine and hand washable as needed with mild soap and water. You don’t need to wash these socks as often as regular socks due to their naturally antimic robial properties. Never use bleach, whitening detergents, oxi-detergents, or soaps with essential oils 【One size fits most】This grounding socks fit most feet, as they are highly stretchable. Unisex for men and women. When unworn, the sole of the sock is 7'' long and 5'' high 【Grounding in soft comfort】Merisky Grounding Socks, designed with silver thread, can provide a unique comfort experience, becoming a daily essential for your foot care routine. Let's enjoy comfortable grounding. Merisky Grounding Socks, Conductive Silver Fiber, One Size Fits Most, 20% Silver Fiber Crew Socks for Men Women, Earth Connected Socks for Grounding Mat, Grounding Shoes 【How to Use】 Indoors: Ensure you are in contact with a grounding mat, pad, grounding shoes or any grounding device that is connected to an electrical outlet or grounding rod. Outdoors: For best results, walk on natural surfaces like grass, soil, or sand. Duration: Wear the socks for at least 30 minutes a day to experience the full benefits. For best results, incorporate them into your daily routine.