Multifunctional pocket - simply store a mobile phone, map or navigation device safely in the Nylon storage compartment on the top. The touch can still be operated comfortably. Ideal for long journeys or a geocaching trip. - Removable shoulder strap, so that your valuables remain with you during breaks. The bag can be easily used as a shoulder bag. Cool bag - large storage compartment with insulating lining. With a cooling pack, the bag simply becomes a cool bag. This keeps drinks cool even on long journeys. Perfect for summer or winter activities. Waterproof thanks to the special coating, the bicycle bag protects the contents ideally from rain and dirt. At the same time, it is durable thanks to tear-resistant nylon material. Large capacity - The mesh pockets on the left and right provide enough space to store small tools or pens. The inner pocket provides enough space for sunglasses, drinks cans or small snacks. Easy installation - thanks to the three point Velcro fastener, it is easy to attach to road bike, folding bike and mountain bike quickly and easily. No tools required. Features: Suitable for short- and medium-distance travel. The side can be expanded as a pannier, and the height can also be expanded to increase the internal volume. Thicken the cushion, you can put the camera and other items. Net weight: 0.85KG plus the package, the overweight is around 1.2K and the charge is 2 kg. When the pannier is unfolded, a short-distance travel car pannier with side bags is formed. The car bag material itself has a good waterproof coating. The big bag of the main body of the pannier can be used to put some daily necessities, because there is a thick cushion at the bottom, which can play a very good shock-proof effect. There are reflective strips on both sides and back, which can play a good warning effect under low illumination. Rear side: You can put a standard kettle or even a large coke, and there is a reflective strip on the rear side to ensure that it also serves as a warning when walking at night. It is easy to install and does not require any tools. Convenient and practical, after getting off the car, it can be used as a bag. The capacity is large enough. In fact, it is not filled with a lot of things. A short distance of 4 days is enough. The workmanship design is quite perfect, with reflective strips, which can be seen from all directions. Product parameters: Material: Nylon Size: 19 x 14x 16 cm (L x W x H)