Large capacity and fully waterproof multifunctional bike handlebar bag - Large capacity design provides ample space to store your essential items. It is fully waterproof to keep your belongings safe and dry in any weather. The bag is a versatile storage solution for daily use and varied riding scenarios. Portable and easy to carry - Large opening design for easy access and loading, and convenient handling off the bike. The bag is easy to carry with you wherever you go, so your items stay within reach. Three-dimensional shape with a shoulder strap - A three-dimensional form offers a roomy interior while preserving a slim, stylish silhouette. It includes a shoulder strap for comfortable carrying when you are off the bike. Multiple storage options - Side mesh pockets on both sides provide additional space for headphones, tools, or other small items. Elastic bands on the front are ideal for securing gloves, sleeves, or other cycling gear. Use scenarios - Daily commuting in wet weather: keep keys, phone, wallet, and small tools dry and within easy reach. - Weekend bike tours: pack a compact rain jacket, repair kit, spare parts, and personal items in a single, organized bag. - Off-bike errands: detach and carry the bag by the shoulder strap for quick trips to the gym, cafe, or errands while keeping essentials secure and accessible.