Fit is structured but not tight. I have larger upper arms and tend to find J Crew coats too narrow but the fit was great and super comfortable. Consider sizing down if you want a tighter fit but definitely don't need it and you'll still look professional

Grey Cocoon Coat

J.Crew

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Size Worn: 18

Usual Size: 16

Height: 5' 7"

Bust: 36G

Fits anyone and that was a bit of the problem. It's super unstructured and the material was more like a bathrobe than a dressed up coat

Raspberry Maggie Coat

Nanette Lepore

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Size Worn: XL

Usual Size: 16

Height: 5' 7"

Bust: 36G