The Sports Trunk Bag is a handy shoulder bag suitable for all types of luggage carriers. The bag is attached to the luggage carrier by means of four small straps with Velcro. The bag has a rain cover and reflective elements on three sides. The main compartment can be enlarged and the bag has two roll-out side pockets. The bag also has three inner compartments, a removable shoulder strap and a bottle holder at the back of the bag.