The Dublin River Boots III are breathable for all day comfort with a waterproof booty lining to keep your feet and ankles dry. Moisture-wicking RCS footbed system with heel, arch support and double cushioning layer for great comfort. Breathable nylon lining suitable for wear all year round. Durable and lightweight Tough Tec rubber outer sole with heel and arch support with double cushioning layer for great comfort. Elastic top gusset and adjustable lace for a great fit.