Crafted from high-density synthetic polyester fiber-based fleece, this bag cover is meticulously brushed and shaved to replicate the softness and texture of natural fur, effectively muffling your bag's noise. Equipped with cutting-edge hydrophobic treatment, our bag cover delays water absorption, causing raindrops to bead up and protect you on wet days. Moreover, it's stain-resistant, providing you with complete peace of mind during your outdoor journeys. The S/M model is suitable for backpacks of 12 to 25 liters while the L/XL model is suitable for backpacks of 25 to 45 liters.