1.Water-repellent lined Waterproof inside, easy to clean. Fabric with soft padding ensures maximum protection, reducing shock when driving on the road.^ 2.Cool drinks at hand Insulated lining keeps your drink and food cold or warm for hours, suitable for everyone who likes to take fresh drinks or snacks with them^ 3rd pocket with elastic bungee 1) Elastic bungee cord on the top to keep your clothes, rain jacket or cards securely on your pocket. 2) The open back pocket with elastic band keeps your water bottle in place. Or keep other things like repair tools, small air pump, etc.^ 4.Multifunctional pannier Detachable, adjustable shoulder strap for comfortable carrying and relieving the back. Light and practical, it can be used not only as a luggage carrier bike bag, but also a shopping bag and shoulder bag with an adjustable shoulder strap. Reflective elements for better visibility and safe driving at night.^ 5.Easy installation Adjustable fastening straps for assembly and disassembly. It is universal for all types of bicycles with a rear seat, such as mountain bikes, racing bikes, etc., and also fits most bike carriers.