Amazon EssentialsWomen's Classic-Fit Lightweight Long-Sleeve Turtleneck Jumper (Available in Plus Size)

Is this sweater tight fitting or clingy? I’m buying this for my 13 year old granddaughter and she does not want anything form fitting.

Is the black a pure black or more heathered? It’s hard to tell from the photo.

Where can I find a sizing chart with measurements?

The picture of the navy blue looks very pale. Is the navy blue a true navy?