The most common problem in gyms, swimming pools and sports arenas is reverberation. Gyms dedicated to group workouts often lack the proper acoustic requirements and consequently the noise can cause mental stress. Music, machines in use (e.g. treadmills) and gym goers’ voices can all contribute to making the gym uncomfortable and chaotic. Sound-absorbing panels therefore become essential elements to deal with these problems and to offer users a peaceful environment where they can enjoy their own sport. The Nuvola and Flag panels are the perfect solution for these environments. Hung from the ceiling by steel cables, they can be combined in different formats to create configurations of various shapes and sizes. Flag, in particular, guarantees to block the volumetric wave, minimising reverberation.