Size: M(42-43)/L(44-45) Reinforced Protection: Features thickened scratch-resistant fabric on the toe and heel areas, minimizing ground friction during walking and extending durability. Stretchy & Comfortable: Crafted with high-elasticity polyester fabric that adapts to different shoe sizes, to provide a snug fit and create a smooth surface for air to flow during riding. Anti-Slip Strip: Built-in silicone strips along the legs and widened elastic top cuff prevent falling off or slippage while cycling. Ultra-Light & Compact: Weighing under 100g, it easily rolls into a water bottle-sized bundle for storage in bike bags or backpacks. Easy to take On/Off: Easy to wear in seconds, fastened by nylon buckle at the sole and compatible with MTB shoes and Road bike shoes for dust and mud protection.