People sometimes comment that cocoknits runs a bit narrow through the upper sleeve. There is a reason!
The arm looks as big as what you encase it in…if you knit 3″ of ease into the upper sleeve, guess what? Your arm looks 3″ bigger around than it really is. For more on this, see The Sartorialist’s post on sleeves and knitwear, he’s talking about menswear, but the same goes for women… a fitted sleeve can drop 10 pounds off the figure.
This does not bother most thin, young women. But as we age we need all the help we can get! Compare the photos below:
Try knitting your upper sleeve with 0-2 inches added to your upper arm measurement. You don’t want negative ease, that’s not good, either! But a sleeve that just fits is the most flattering. Look at schematics to find the size that best fits your upper arm and knit to that measurement. The rule of thumb is the thicker the yarn, the less ease you want.