- Waterproof Protection: Constructed from tear-resistant and wear-resistant materials, this bag features woven leather, EVA lining, and advanced flannel technology, ensuring complete waterproof protection for your valuables in all weather conditions. Additionally, it offers heat-resistant properties to safeguard your items. - Optimized Storage: Enhance your cycling experience with our spacious pannier rack bag, which boasts a capacity of 20L. With multiple pockets and divided storage, it allows for easy organization and quick access to your essentials, making it ideal for all your storage needs. - Versatile Usage: Expand your carrying options with this bicycle pannier bag. It securely holds helmets, gloves, and glasses while providing space for water bottles, tools, cameras, and snacks. Perfect for accommodating your gear during winter rides or hot summer days, it enhances your comfort on the road. - Easy Installation: Attaching this bike bag to your back seat is a breeze, thanks to the adjustable strap length and double-firm design. It fits racks of various specifications and remains stable without any shaking. The installation process is straightforward, utilizing leather straps and adhesive for added security. This pannier rack bag combines functionality, durability, and ease of use, making it an essential accessory for cyclists seeking practicality and reliability on their journeys.