I'm not sure what you meant by the sentence alone. However, what you can do is simply separate the sentences.
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Deleted member 84247
That works, too. Something like: "Good," Emily said. Her hat wiggled despite the lack of breeze.
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Deleted member 84247
Also, oftentimes phrases like "in spite of" that can be replaced with "despite" go against flow and concision.
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Deleted member 76176
I'm more concerned with the word usage 'wriggle.' Since you won't generally compare the gust trying to blow away a hat with wriggling, I don't think the particular imagery works here and just makes me confused.
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Deleted member 84247
Not wriggle: Wiggle. From my understanding, the hat is just moving without a breeze.
"Good," Emily said, her hat wiggling in the calm air.