The paper presents a procedure for the design of seamless compression products with an intended value of unit pressure on numerically controlled flat knitting machines. Based on the algorithms developed, some important stages of product design are discussed, ie dimensioning of body parts by 3D scanning, selection of proper longitudinal rigidity of the fabric, and manufacturing the tolerance of the product in the form of five-finger gloves with covered and exposed fingers. An important stage in the design procedure is the selection of a knitted fabric with appropriate longitudinal rigidity in dependence on the anatomy of the hand.