West Biking Waterproof Hard Shell Bike Rear Rack Bag 11L Capacity 600D Oxford Fabric & EVA Bicycle Trunk Pannier Bag for Commuting Touring Mountain Road E-Bike with Rain Cover (Black-2: 11Lc

• ? 11L Large Capacity - Dimension of bike rack bag 11.8 x 6.7 x 7.9inch (L x W x H), large enough to store bike tools, bike tire pump, cable lock, clothes, wallet, phones, power bank, towels, water bottles, maps, food, etc. This under seat storage bag includes a 8.6L main compartment, with 3 inner mesh pocket, help to get your essentials well organized. The top elastic drawstring can also help you tie a lot of items,like bike pump, umbrella, clothes, etc
• ? High Quality & Waterproof Material - The bicycle rack bag is made of 600D Oxford fabric coated with PU, design with EVA material, which is water resistant, durable and lightweight, easy to clean. Water resistant material & fully waterproof double zipper to help you keep your belongings dry,this rear bike bag also come with a rain cover, so do not worry about cycling in rainy day. (The waterproof zipper may require a little effort to pull, and requires a little attention during use)
• ? Reflective Strip & Side Water Bottle Bag - The reflective webbing and LOGO design of this bike basket rear bag, increases nighttime visibility and the hanger on the strip can hold a taillight which can also enhance cycling safety at night or in low light situations. Bike bags for bicycles rear rack design with side water bottle bag, it is convenient for you to drink water at any time during the ride.(Remember to tighten the shrink cord when you put the kettle back)
• ? Tool Free Installation - This bicycle rear seat bag come with 3 adjustable velcro straps, make it easy to be installed and unloaded in seconds, secure your bike cargo rack bag for maximum stability & security. This bike trunk bag does not move, shift or budge easily, helps you tie tight without getting caught in the wheel. Suitable for most bicycle racks, such as mountain bike, road bike, electric bikes
• ? Multifunctional Bike Accessories - You can use it as a shoulder bag or handbag depending on the occasion. When off the road, you can use it at work or school. This bike luggage bag comes with a handle and adjustable shoulder strap, bike rear rack pannier bag is not only used for bicycle cycling but also can be used as a handbag, mountain climbing bag and shoulder bag for travel, camping, picnic, ski and more occasions
• ? Guarantee - After you buy our bike packs and bags, you could return with any reason during the first 90 days. Your satisfaction would be our priority. Any problem please feel free to contact us

Elevate every ride with reliable and convenient storage. The West Biking Hard Shell Bike Rear Rack Bag is engineered for the avid commuter, weekend explorer, and long-distance tourer. It seamlessly combines large-capacity organization, all-weather protection, and versatile utility to become an indispensable smart accessory for your bike. Organized Storage for Everything You Need Say goodbye to cluttered backpacks and baskets. This bicycle trunk bag offers a spacious 11L (11.8" x 6.7" x 7.9") main compartment with three internal mesh pockets for smart organization. Perfect for your daily commute or weekend adventure, it easily holds: Repair & Safety Gear: Spare tube, bike multi-tool, portable bike pump, cable lock. Personal Items: A change of clothes, wallet, keys, a small towel. Electronics & Navigation: Your phone, power bank, map, or action camera. Sustenance: Water bottle, food, energy bars, and snacks. The top elastic drawcord provides extra expandable space, allowing you to securely lash a bike pump, umbrella, or a light jacket for changing conditions. Built to Endure All Elements & Terrain We understand the need to protect your gear. This waterproof bike bag is crafted from heavy-duty 600D Oxford fabric with a PU coating and features a supportive EVA hard-shell structure. This makes it scratch-resistant, impact-absorbing, and highly protective against road spray. The fully sealed waterproof zipper (designed for a durable seal; a firm pull is recommended for smooth operation) and the included detachable rain cover create a double barrier, ensuring your belongings stay completely dry, even in a sudden downpour. Safety-Enhanced & Effortlessly Installed Safety is the foundation of a great ride. The high-visibility reflective strips on the sides and rear effectively catch light in low-visibility conditions, dramatically increasing your presence to others for safer night riding. The side bottle pocket offers easy access to hydration (we recommend tightening the drawstring after inserting your bottle for a secure fit). Installation is instant—simply secure it to most mountain bike, road bike, or e-bike rear racks in seconds using the three robust hook-and-loop straps at the base, ensuring a stable, wobble-free fit on any journey. Beyond the Bike: Your Multi-Scenario Companion Its use extends far beyond cycling. With the included adjustable padded shoulder strap and carry handle, it instantly converts into a stylish and practical shoulder bag or hand carry. Whether used as a hiking pack on the trails, a travel bag for short trips, or for camping, picnics, or skiing, it adapts to your lifestyle, offering true multi-purpose functionality. Choosing West Biking means opting for an efficient, safe, and liberating cycling experience. Add this essential bag to your gear collection and embark on your next adventure with complete peace of mind.