The brand was born from a simple idea: a few passionate runners realized that the shoes on the market didn't truly meet the body's needs during running. This insight led to a period of experimentation, resulting in the creation of a shoe model with a structure different from the norm, designed to respect the natural biomechanics of the foot.

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 while 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.