Men's Volcom Work Stone Op Ct EH Work Shoes The Volcom Work Shoe Stone Op Ct EH is a durable and comfortable work shoe designed for heavy-duty tasks. It features a suede and canvas upper, with a vulcanized construction for added durability. The shoe also has a cushioned insole and padded collar for added comfort, and meets ASTM standards for electrical hazard resistance. Its classic design and breathable materials make it a great choice for those who need a sturdy work shoe that looks stylish as well.