Waterproof bike carrier bag. Bag of three compartments with a total volume of up to 1 liter. Easy to install, easy to carry. This product is combined with bicycle bags for the trunk. The side sections can increase in size by hanging down to the sides of the trunk. It is completed with: closing the main compartment with zippers with locks, securing the upper flaps with a fast-fastener. Reflective bands, carrying handles, straps fixing to the bike.