Aeolus is a shoulder bag which can be transformed into a windbreaker. As a bag it can carry a mobile phone, wallet, cosmetic bag, keys, cards etc., or it can easily be transformed into a windbreaker. Made of plant-based nylon fabric, it keeps the wearer warm and is comfortable to wear during exercise thanks to its permeability. When it is used as a windbreaker, there is a pocket at the back to hold personal belongings. Moreover, Aeolus can also be fixed onto bike grips and thus is easily adaptable to an individual user’s needs.