Hi. I don't know the yarn but I thought I'd offer this great site that Shandeh offered on another forum topic here. There is a plus size blog so it may be worth asking. For your climate and so on I'd tend to go for a cotton blend but the Superwash being 100% wool may be ok if knitted in an open weave sort of manner. Still you have a budget limit so it others from the US here can suggest a wool/cotton blend affordable to you that may be wonderful.