Amy is a made-to-measure pattern, made with sport weight yarn, but other yarn weights could work.
You’ll use a 3mm hook, or whatever hook your yarn calls for.
Pattern includes two video tutorial links: one on how to do surface slip stitch crochet, and one on how to construct the sleeves.
Pattern includes lookbook with pictures from my testers to give you inspiration on styling and yarn color.
Amount of yarn used will depend on your size. I used about 300g for a size US medium or a size 6/8 in the UK.