Meet the Sierra Terrain, made for civilian adventure. This lace-up, go-everywhere shoe is made to go the distance – and keep your feet dry, supported and comfortable wherever your missions take you. We created the outsole with Vibram, a natural rubber famous for its all-conditions grip, and reinforced the toe cap and heel with rubber panels for long-lasting durability. The upper is a high-performance, high-style mix of suede and ultra-tough Cordura nylon, lending these kicks water-repelling superpowers and more resistance to abrasion. Oakley logos at the tongue and heel bring sporty vibes to this warm-weather essential that's ready for every expedition.