This is a crochet pattern for a slip over vest that is made to your own measures. You only have to know some basic stitches and there are pictures on how to measure yourself and how the progress of making the vest looks like. You have two options for the neck that are explained: a folded turtleneck or a simple mock neck.

I also added the measures and row counts for a size XS/S made with medium yarn and a 6 mm crochet hook for an orientation. For this size with a folded turtleneck I used about 300g / 600m of medium yarn in total.

You can use any yarn and hook size you want, but the bigger the yarn and hook are, the faster you will be done!