The AV 300 Shoe Cover provides the ultimate cold and wet weather protection.. This deep winter shoe cover is breathable, windproof and water-resistant. Its superior insulation properties will keep your feet toasty on even the coldest days.. The cover is predominantly Pixel 300 BZ, a highly reflective microfiber/spandex material that provides maximum visibility. It also incorporates a windproof and waterproof membrane to give protection from the elements. The elasticity of the materials allows a snug, aerodynamic fit.. The rear zipper is slightly raised to prevent damage while off the bike and is covered with reflective flaps. There is an independent tab below so you can pull the cover on without putting stress on the zipper. However, there is also a Velcro closure tab on the bottom such that the cover can be opened completely, allowing you to pull it over your shoe before putting it on then pulling it down over the shoe.. Reflective zipper cover. Pixel® reflectivity. Rear pull-tab for ease of entry. Velcro closure on sole to facilitate entry and exit. EU Shoe Size: S 38 - 39 / M 40 - 41 / L 42 - 43 / XL 44 - 45 / XXL 46 - 47