Nine 18 The Label
Underwire Bra Top
Underwire Bra Top
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Support meets sass 🌺
Our Underwire Bra Top is here to lift, shape, and serve serious tropical energy. With sculpted cups, adjustable straps, and bold hibiscus prints, this top gives you all the support you need—without sacrificing style. Wear it poolside or pair it with high-waisted pants for a beach-to-brunch look that blooms all day.
- Alix wears a size medium is a 36B cup and loves to pair it with the Nine18 classic bottoms
- NO Returns On Bottoms Only Exchanges
- Models are wearing size medium
NINE18 - U.S. Swimsuit Size Guide
Get the perfect fit for your body and confidence. Follow our sizing below to find your ideal swimsuit size.
📏 How to Measure (In Inches)
Use a soft tape measure and measure directly on your body:
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Bust: Around the fullest part of your chest, keeping the tape level.
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Waist: Around your natural waistline — the narrowest point.
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Hips: Around the fullest part of your hips and seat.
👙 Women's Swimsuit Size Chart – U.S.
| Size | U.S. Size | Bust (in) | Waist (in) | Hips (in) |
|---|---|---|---|---|
| XS | 0–2 | 31–33 | 24–26 | 33–35 |
| S | 4–6 | 33–35 | 26–28 | 35–37 |
| M | 8–10 | 35–37 | 28–30 | 37–39 |
| L | 12–14 | 37–39.5 | 30–32.5 | 39–41.5 |
| XL | 16–18 | 39.5–42 | 32.5–35 | 41.5–44 |
| XXL | 20–22 | 42–45 | 35–38 | 44–47 |
🔎 Fit Tips:
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In between sizes? Size up for comfort, especially in one-pieces.
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Adjustable straps and removable pads help customize fit.
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All swimwear features 4-way stretch for flexibility and support.
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