A wrist orthosis in standard model, made of a durable resilient material with a soft and comfortable inside. The model is open and easy to put on and take off. It has a good anatomic fit inside the hand, over the back of the hand and around the structures of the thumbs. The orthosis gives a stabil support with a mouldable plastic stay on the volar side. It has an open adjustable thumb band. The model is 19 cm long.