Universal Fit: Our bike pannier bag is carefully designed to fit a wide range of bicycles, including most road bikes and mountain bikes. Whether you're cruising on a sleek road bike or tackling trails on a sturdy mountain bike, our bag's adjustable straps and versatile design ensure a secure and comfortable fit. About This Products: Our bicycle bag is crafted with waterproof materials that ensure your belongings remain safe and dry, even on the most unpredictable rides. The bag's exterior is made from a durable nylon, and waterproof fabric, expertly woven to provide a robust and long-lasting design. Stylish Design: Our bike frame bag features two large side pockets that provide a generous capacity for storing a wide range of items. From energy bars and water bottles to tools and accessories, these pockets have got you covered. Meet all your needs in cycling. Easy to Install: Our bike rack bag is designed to fit a wide range of road bikes and mountain bikes, making it the good accessory for cyclists of all levels. The adjustable straps ensure a secure and customizable fit, allowing you to easily install the bag on your bike's rear rack. Package Item: 1 Pc Bike Pannier Bag