In deep winter the road to Vršič pass is closed so it can happen that you first need to skin up to Vršič pass. Depends on how the road conditions are. If possible park at the Vršič pass.
From the parking go south west. First you descend a bit but then you start ascending. GPX shows the easiest way up. There are also some other options to climb up (crampons and snowaxes are needed). Your goal is the narrow saddle Vratca on the ridge. From there you turn right and follow the ramp/ridge up to the top.
You can descent the way you came up over the saddle Vratca or you go further south into Drevesnica. From there you need to skin up again to the parking or if you hitch hike on the road. up to you.