It is a pattern recipe with detailed description of the construction and the example of my own sweater. I used Angora 2 held double, that gives you 100 g/360 m. About 160 g of Angora is enough for size S-M. I recommend using non-bulky yarns, either something light like mohair or linen for a summer version or something that gives you a nicely draping fabric like many sock yarns do (Estonian Aade Lõng/Kauni or Lithuanian Teksrena would be a nice option).