- Size: 42 - KEEN Arroyo 2 Men's Sport Sandal, size 42 EU, ideal for hiking and outdoor activities - Waterproof durable leather from certified tanneries, protects against moisture and wear - Breathable design with ventilation openings that promote air circulation - KEEN.ALL TERRAIN rubber outsole with 5 mm multidirectional lugs for superior grip on slippery and rocky terrain - Dual-density insole and durable cushioning system for greater comfort on long walks - Quick-dry lining and elastic closure system for a secure and fast fit - Reinforced bumper and stability shank for increased protection and control on uneven surfaces - Eco Anti-Odor probiotic-based technology, naturally eliminates odors - Sustainable materials and environmentally conscious design - Non-marking outsole, suitable for both indoor and outdoor use