At roughly half the cost of Nomex, Rhovyl will not drip, melt or adhere to the skin if exposed to heat or direct flame, a quality that is not affected by laundering. Light as nylon and exceptionally non-absorbent, we've added ESD-carbon filament for anti-static properties. (Surface-resistance rating between 10 to the 10th Ohms, to 10 to the 7th Ohms). Thin, seamless and soft, they provide the insulation, and warmth of wool - without the bulk or itchiness - yet protect from both extreme heat and cold. Rhovyl is hypo-allergenic, and resists mildew and other destructive biological agents (sun, salt and mold). It's also easy care - machine washable and quick drying - so it also wicks moisture away from hands.