- Durable & Water Resistant: Constructed from high-quality polyester, this bag features water-resistant properties and heat preservation, effectively blocking rainwater while maintaining a sturdy design. The protective padding provides cushioning to absorb shocks on uneven terrain and an insulated lining keeps your food and drinks hot or cold for hours. - Large Compatibility & Generous Space: Size: 38 x 15.5 x 16 cm (15 x 6.1 x 6.3 inches). The main pocket offers over 10L of capacity, complemented by several spacious compartments for organized storage of maps, groceries, food, tablets, chargers, smartphones, wallets, bike pumps, repair tools, and beverages. Perfect for tackling long rides with ease. - Thoughtful Design & Safe Riding: Equipped with large reflective elements on both sides, ensuring visibility during night rides. An open-top rear pocket with elastic cord securely holds your water bottle. Front and bottom Velcro straps provide stability, preventing movement on bumpy roads. Designed to fit most mountain, road, and commuter bikes. - Easy Installation & Versatile Use: Adjustable straps allow for quick installation and removal on most road or mountain bike racks. The two long straps across the rack and two fixed buckles ensure a secure fit that does not shift. This bag can serve as a bike rack bag, a handbag with a built-in carrying handle, or a messenger bag with an included shoulder strap. - Customer Satisfaction Guarantee: We aim for your complete satisfaction. If you are not happy with your purchase, contact us for a replacement or refund. All orders are shipped with tracking information for timely delivery. If you encounter any issues with your order, please reach out to us.