An orthosis and a method for the production thereof are provided. The orthosis includes a first support section and at least one further support section that form a three-dimensional support body. The support sections rest on the patient and support limbs or body areas of the patient. The orthosis also comprises fixing means which engage on the support body and which fix the orthosis on the patient. The support body comprising the support sections includes a reinforcing structure that comprises a support layer onto which at least one reinforcing thread is sewn. A pattern layout of the reinforcing thread is oriented along force lines corresponding to stresses that occur in the support body. The layout of the reinforcing thread lies within a surface on the support layer, said surface corresponding to a two-dimensional pattern layout of the three-dimensional support body.