The Onuma collection offers a modern, city look combined with rugged, waterproof durability. The exclusive Smart Comfort Plus system technology offers all-day comfort and support, without any break-in period. Premium, full-grain leather for comfort, durability and abrasion resistance. Seam-sealed waterproof construction keep feet dry in any weather. Smart Comfort Plus system is made on a contoured last for better comfort and no break-in period. It has a 5mm memory foam top layer for instant comfort on a dual-density EVA Smart Comfort insole that spreads impact force and absorbs shock. Finally, the insole is pigskin leather lined for comfort and durability. Moisture wicking mesh lining with 70% recycled content, keep feet dry and comfortable. EVA footbed is made from 20% recycled material. Rubber outsole for traction and durability is made from 15% recycled rubber. This shoe contains no PVC. Airport friendly shank provides support, stability and shock dispersion and should not set off metal detectors. Waterproof.