The Tilhi (Finnish for the Bohemian waxwing) Spike GTX shoes are perfect for running errands on slippery winter days and for relaxed short walks. If you are between two sizes, it is recommended to choose the smaller size for this shoe. If you need more room for your foot, you can remove the insole and replace it with a thinner one. If you want a snugger fit, you can add a thin insole underneath the existing one. - Extra wide last, so-called J-last - Waterproof Gore-Tex membrane - Upper material: black suede leather - Removable insolescan be replaced with your own orthotic insoles if desired - Zipper and elastic panel make putting them on easier - Rubber sole with tungsten carbide spikes - Polyurethane guard protects the shoe from gravel and salt *Note!* Spiked shoes can damage most floor materials.