Dunham 8000 Works Men's Slip Resistant Moc Boot. Strong, steady, and better with time, the 8000Works men's boots are built with purpose. These boots are rated for a variety of conditions, so you're ready to get to work. Expertly constructed with Dunham's smartly engineered features, these Moc boots will take you through workdays and off-hours comfortably. ESR-TESTER ANSI-Z41 PT99 helps to prevent electric shock hazards. ASTM F2913-19 in Dry, Wet, Oil, Oil/Wet Conditions for slip-resistance. SATRA TM144 in Dry, Wet, Oil, Oil/Wet Conditions for slip-resistance.