The device (10) has an elastic compressive distal portion (14) covering an ankle and extended to front of a calf. The distal portion is made by knitting a knit yarn and a weft yarn. A non-elastic splint proximal portion (16) is arranged adjacent to the compressive distal portion and covered over circumference of the compressive distal portion. The splint proximal portion is provided with a deformable tubular portion that is knitted with the compressive distal portion, where the splint proximal portion is attached with a hardened biocompatible resin. An independent claim is also included for a method for tailoring an orthosis for medical compression/splinting of a lower limb of a patient.