Oregon Mudders Men's CM600 Waterproof Golf Boot Removable insole cushions the foot, wicks away moisture, and offers daily wear comfort Performance innersole features dual-density strike zones for high impact activity Molded neoprene mid-sole is made of synthetic rubber material, lightweight and flexible, yet still durable and resists breakdown by water TPR rubber outsole with replaceable inserts are reinforced with fabric strands to add strength and flexibility Surlyn molded arch plate provides the best possible arch support without adding weight