For the Milky Way on Karnischer Höhenweg, a “normal” equipment for alpine hikes on unpaved and partly rocky paths in the Southern Limestone Alps is sufficient. Sturdy footwear with a good tread sole for unpaved paths is a “must”, and carrying telescopic hiking poles to relieve knees on some longer descents is recommended. In summer, good sun protection and sufficient water are very important (there are not refreshment options on every stage). Enough warm clothing for possible weather changes is also important, even in high summer. For all mountain huts along the trail, a sleeping bag liner and a towel must additionally be brought.
Here is the detailed equipment list for your trail trip.