The best outdoor sock you can buy for oily spills on land – UV resistant up to one year.Outlasts other outdoor socks with the most UV resistant construction you can buy. Period. Moldable socks hug corners and surround machine bases to absorb machine leaks, contain puddles and keep workers safe Cellulose filler is hydrophobic for containing and absorbing oil-based spills in a variety of environments Polypropylene skin resists tearing; reduces dust and holds in liquid, even when saturated Absorbs and retains oils and oil-based liquids - including lubricants and fuels - without absorbing a drop of water Ideal for use on land, but also floats to clean up oil-based liquids on water Attached string conveniently allows socks to be tied down, tied together or dipped in non-corrosive wash baths Skin is UV resistant up to 12 months; meets NFPA 99 standards for static decay Recycled content is ideal when green products are desired or required Not recommended for use with acids, bases or other corrosives