Emergency and first aid bag made in tear-proof material extremely compact and large. The internal modularity permits personal space organization to store different equipments and materials. The modularity is guaranteed by partitions easily fixable thanks to velcro strips. Two lateral pockets for first necessity materials, net pocket with velcro zip-opening to contain emergency material. Front pocket with three large compartments and one zip-fastening compartment provided with elastic bands of different dimensions to contain different objects. Two internal lateral net pockets with zip-fastening. Shoulder or hand portable. The bag is provided with front and lateral reflective tapes and safety anti-sliding feet.