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Color was true, sizing was good. For reference, I bought the small for a 5' 90lb tween. I expected this to be slightly heavier/warmer. However, it's as thin or even thinner than a t-shirt. I would've returned it, but my kid really liked the color.
This hoodie is extremely thin, which is great for summer. Just be aware the bottom hangs loosely. I think that's unattractive and would rather have something with a little elasticity that hugs your shape more. I wings out at the zipper and the sides and looks bad.