SHOE COVERS LIN shoe covers are designed for superior construction, comfort and fit. Knitted with nylon wind lycra provide protection and aero-dynamics for most cycling shoes. To create a custom fit simply cut a small hole to expose the shoe cleats. Reflectorz are a high-Viz-Reflective yarn directly knitted into the top 1/2" band of the sock structure for ultimate safety, will not break, come loose or loose its reflective properties. Limited quantity.