Patterned after the highly successful Acadia, the Danner APB offers a highly polishable, full-grain, leather and 1000-denier nylon fabric upper with a CROSSTECH liner from W.L. Gore for the ultimate in breathable protection against water and blood-bourne pathogens, an important benefit for the toughest situations on the job. The APB also sports the Vibram 1276 Sierra outsole, the same outsole worn by Danner customers in Iraq and Afghanistan. Soldiers appreciate the Sierra for its acceleration, traction and comfort, features also needed by law enforcement officers. In addition, the APB features an upper-area speed lace system for quick entry when duty calls..