FEATURES of the keen Women s Terradora Flex WP Mid Boot Performance mesh upper with TPU overlays for durabilty Speed hooks for easy lace adjustment Quick-dry lining for active use Removable PU insole with arch support for long-lasting comfort Direct-attach air-injected luftcell PU midsole for long-lasting cushioning Higher-traction TPU outsole for lightweight durability Non-marking multi-directional lugs for increased traction 4mm Multi-directional lugs for traction Stability shank defers lightweight support Keen.dry waterproof breathable membrane Eco anti-odor for natural odor control PFC-free durable water repellent Achilles pad for comfort TPU overlays for durability