I bookmarked this site quite a while ago. There used to be an English version of the page but apparently not anymore. There are still some great patterns here though.
This hat is worked in spiraling rounds through rnd 16. Don't join rounds. Use a stitch marker to indicate first stitch in round, move it up at beginning of each round.
This cap is based on the red cap from the movie "The Professional". However, I have changed my original pattern a bit (added a row of shells) in order to make it longer. To obtain a more movie-consistent cap, omit one row of shells. In order to make the hat more like a beanie in length, add two rows of shells.