Complete Comfort Mat Complete Comfort is an ergonomically superior anti-fatigue mat. 5/8" thick, 100% closed-cell Nitrile Rubber construction. Anti-microbial treated, slip resistant surface is grease, oil and chemical resistant. Perfect for wet or dry areas. Textured surface for superior slip and skid resistance. Beveled edges for easier floor to mat transition. Light weight and easy to clean. Static Coefficient of Friction - Dry is 0.88, Wet is 0.79. 4' x 8'. Without Holes.