Features Contoured Fit follows the contours of your foot for a comfortably snug fit Foam strobel board underfoot for an extra layer of cushioning High-rebound foam cushioning enhances comfort and movement Removable, resilient foam insole for long-lasting cushioning KEEN.ALL-TERRAIN rubber outsole for higher-traction grip Multi-directional lug pattern provides superior traction KEEN.DRY waterproof, breathable membrane seals out moisture from the inside Upper is reinforced in key areas for added durability PFAS-free, durable water repellent repels water just as well as forever chemicals without harming the planet Eco Anti-Odour for natural, pesticide-free odour control Materials Lightweight performance mesh upper Breathable mesh lining Non-marking rubber outsole