Rocky Unisex Alphaforce Composite Toe Waterproof Work Boots 。Rocky Forge 6 Inch Composite Toe Waterproof Work Boots, style number RKK0358. Key features of these work boots include: Height: The boots are 6 inches in height. Material: They feature a waterproof full-grain leather upper with high-abrasion heel and toe covers for durability. Waterproofing: They utilize Rocky VP waterproof construction to keep feet dry. Safety Toe: The boots have a composite toe that meets the ASTM F2413 safety toe work boot standard and the electrical hazard standard. Outsole: The outsole is made of oil- and slip-resisting TPU, which is durable and resists breakdown from chemicals and oils. Comfort: The design includes a padded collar and a Rocky Air-Port comfort footbed for all-day comfort