The brand was born from a simple idea: a group of passionate runners realized that the shoes on the market did not truly meet the body's needs during a run. This insight sparked an experimental journey that led to the creation of a shoe model with an unconventional structure, designed to respect the foot's natural biomechanics.

One of Altra's fundamental principles is the so-called "Natural Fit", which involves a wider toe box to allow space for the toes and promote a more stable and natural posture during running. This approach is part of a broader philosophy that views running not as a source of stress, but as an activity designed to improve well-being and freedom of movement.