Large capacity and fully waterproof bike handlebar bag - Generous interior space provides ample room for your essentials. The bag is fully waterproof, keeping items safe and dry in any weather. It is a multifunctional bag that can be used in a variety of scenarios. Portable and easy to carry - Large opening allows easy access to contents. The bag is easy to carry by hand and can be taken anywhere, so your items are always within reach. Three-dimensional shape with shoulder strap design - The 3D design creates a roomy interior while maintaining a slim, stylish profile. It also includes a shoulder strap for convenient transport when off the bike. Multiple storage options - Mesh pockets on both sides offer extra space for headphones, tools, or other small items. Elastic straps on the front are perfect for securing gloves, sleeves, or other cycling gear. Use scenarios - Daily commute: store a phone, keys, wallet, and compact rain gear with quick access via the large opening. - Weekend rides or cycling tours: keep tools, a multitool, and gloves organized and within reach. - Off-bike errands: remove the bag from the handlebars and wear it as a shoulder bag to keep essentials close at hand.