- Constructed from durable, waterproof polyester for long-lasting use, this bike rear seat bag is designed to withstand the elements. The internal aluminum foil insulation helps maintain the temperature of your drinks and food, keeping them warm or cold as needed. - Features a side-adjustable water bottle holder for easy access to hydration. This bag is compatible with bicycles, electric bikes, and other commuter bikes, making it ideal for cycling enthusiasts. - Offers a spacious capacity to accommodate essential items such as small tire repair tools, a taillight, gloves, tissues, your phone, beverages, and more, ensuring you have everything you need during your ride. - Equipped with adjustable adhesive mounting straps for quick and easy installation and removal, requiring no tools. This makes transitioning between bikes hassle-free. Use scenarios: 1. Perfect for daily commuters who need a reliable storage solution for their essentials while riding to work. 2. Ideal for long-distance cyclists looking to store snacks and hydration without compromising on space or accessibility. 3. Great for weekend adventurers who want a convenient way to carry tools and personal items on their bike trips. This bike rear seat bag combines functionality, compatibility, and performance, making it a must-have for any cycling journey.