Scuba hoodie size 6, not sure if I should size down to a 4

Fit Review Friday! Scuba Full-Zip Cropped Hoodie - Is this the next hot item?

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lululemon ルルレモン ScubaFullZip Hoodie サイズ6

✍🏻 How to size for the Scuba Full-Zip Cropped Hoodie *NOT OVERSIZED* - With picture size comparison and metrics 📏 👚 : r/lululemon

Lululemon Mint Green Scuba Hoodie Size 6

Fit Review Friday! Scuba Full-Zip Cropped Hoodie - Is this the next hot item?

adidas by Stella McCartney Scuba Hoodie - Grey

New without tag

lululemon Scuba Hoodie Full Zip Heather Light Grey size XS/S

Triumph Hoodie

NWT Lululemon Scuba Full Zip Hoodie Heathered Blue Linen Size 6

Lululemon Sizing Info and Fit Tips - Agent Athletica