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Sizing Help

Breast Shape Dictionary
Size Chart

Bra Size Chart

Underwear Size Chart

Sizing App

We believe fit should come first.

Measure yourself with our app’s patented sizing technology to find your perfect size and shop the ThirdLove collection.

The sizing video takes less than 5 minutes. Follow the step-by-step instructions, snap 2 photos, and the app will calculate your exact size, down to the half-cup!

Download on the App Store
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