The AlumiBite™ Star Wading Boot Cleats (10 Count) from Simms are specifically engineered to fit with our Vibram® rubber outsoles utilizing corrosion-free aluminum to conform to micro-surfaces of rocks. Designed to fit predefined cleat locations on Vibram® rubber outsoles featured on Simms RiverTread®, StreamTread™ & VaporTread Platforms Corrosion-free aluminum is softer than carbide & conforms to the micro surfaces of rocks producing excellent grip ITEM #: PG-10698