Our heaviest absorbent sock forms a barrier to prevent spills from spreading. The heaviest sock we make features extra-dense construction to hug floors and stay in place while containing spills Fine-grade vermiculite filler quickly absorbs leaks, drips and spills; great for spill response or absorbing machine leaks Stitch-bonded, polypropylene skin resists bursting; reduces dust and holds in liquid, even when saturated Absorbs most common industrial liquids - oils, water, solvents, coolants and more Ideal for diking and damming liquids Can be air-dried for reuse when soaked with water Nobody knows more about socks than New PIG® - we invented them!