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Size XS Swimwear

These size XS swimwear styles are sized like clothing, not by band and cup. Start with your usual XS, then check the style's own size chart if you are between sizes. The Alexia one-piece and Hannah bikini bottoms are a useful place to compare how the fabric sits at the edges.

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50 products

Sunsets Sporty Swim Skirt 40B Electric Blue Front
Sunsets Hannah High Waist Bikini Bottom 33B Black Front
Sunsets Sporty Swim Skirt 40B Black Front
Sunsets Hannah High Waist Bikini Bottom 33B Electric Blue Front
Sunsets Hannah High Waist Bikini Bottom 33B Indigo Front
Sunsets Sporty Swim Skirt 40B Geranium Front
Sunsets Sporty Swim Skirt 40B Paradise Plum Front
Sunsets Hannah High Waist Bikini Bottom 33B Geranium Front
Sunsets Sporty Swim Skirt 40B Slate Seagrass Texture Front
Sunsets Hannah High Waist Bikini Bottom 33B Berry Burst Front
Save $12.50Panache High Waist Bikini Brief SW1969 Tulle Black
Panache Spirit Classic Bikini Bottom SW1786 Teal Blue Front
Sunsets Simone Tankini Top 81T Tropicolor Crepe Front
Sunsets Hannah High Waist Bikini Bottom 33B Black Pacifica Front
Sunsets Sporty Swim Skirt 40B Posy Pink Crepe Front
Sunsets Allison Swim Skirt 428B Berry Burst Front
Sunsets Hannah High Waist Bikini Bottom 33B Avalon Teal Front
Sunsets Hannah High Waist Bikini Bottom 33B Posy Pink Crepe Front
Sunsets Unforgettable Bikini Bottom 27B Paradise Plum Front
Sunsets Unforgettable Bikini Bottom 27B Black Front
Sunsets Kinsley Swim Short 432B Electric Blue Front
Save $15.00Sunsets Hannah High Waist Bikini Bottom 33B Tuscan Red Front
Sunsets Dora Double Tab Bikini Bottom 205B Palm Shade Front
Sunsets Darci High Waist Bikini Bottom 282B Berry Burst
Sunsets Unforgettable Bikini Bottom 27B Electric Blue Front
Sunsets Unforgettable Bikini Bottom 27B Indigo Front
Save $22.50Aqua Design Womens UPF 50+ Rash Guard Long Sleeve Shirt Black Waters Front
Sunsets Simone Tankini Top 81T Fleur Noire Front
Sunsets Unforgettable Bikini Bottom 27B Geranium Front
Sunsets Dora Double Tab Bikini Bottom 205B Aqua Mist Sandbar Rib Front
Sunsets Dora Double Tab Bikini Bottom 205B Berry Burst Front
Save $19.00Sunsets Annie High Waist Bikini Bottom 324B Slate Seagrass Texture Front
Save $35.00Sunsets Alana Reversible Hipster Bikini Bottom 19B Pansy Fields Front 1
Sunsets Hannah High Waist Bikini Bottom 33B Palm Shade Front
Sunsets Brandi Bralette Bikini Top 68T Aqua Mist Sandbar Rib Front
Sunsets Carrie Crossback Bikini Top 640T Palm Shade Front
Sunsets Carrie Crossback Bikini Top 640T Berry Burst Front
Save $19.50Sunsets Kinsley Swim Short 432B Avalon Teal Front
Sunsets
Sunsets Kinsley Swim Short 432B - Avalon Teal Sale price$58.50 Regular price$78.00
Save $18.00Sunsets Kylie Hipster 213B Panama Palms Front
Sunsets
Sunsets Kylie Hipster 213B - Panama Palms Sale price$54.00 Regular price$72.00
Save $54.00Swim Systems Ellie Tab Side Bikini Bottom B309 Sand Boa Front
Sunsets Unforgettable Bikini Bottom 27B Aloha Vista Front
Sunsets Lyla Bralette Bikini Top 619T Aloha Vista Front
Sunsets Unforgettable Bottom 27B White  Lily Front
Save $31.00Sunsets Alexia One Piece Swimsuit 136 Cascade Seagrass Texture Front
Save $31.00Sunsets Alexia One Piece Swimsuit 136 Slate Seagrass Texture Front
Sunsets Kinsley Swim Short 432B Black Front
Sunsets Capri High Waist Bikini Bottom 310B Black Front
Sunsets Unforgettable Bikini Bottom 27B Rambling Rose Front

How Size XS Swimwear Works

An XS label gives you a starting point for clothing-sized swimwear. Compare the complete product option with the individual chart, then notice how the edges sit without being pulled into place.

A Comfortable Fit Check for Size XS

Check where the fabric rests at the neckline and leg openings. XS should feel secure without needing the straps pulled tight. For a one-piece, sit down and reach up to check the length through your body.

Fuller Bust Support When Choosing Size XS

If you need more specific bust support, visit our Swimwear Size Chart and the Cup-Sized Bikini Size Chart. Read the individual product's chart and construction details before choosing.

Frequently Asked Questions About Size XS Swimwear

Should I choose XS just to make my swimsuit stay put?

Choose your usual clothing size first. A smaller label can make the edges dig in without correcting the fit elsewhere. Check the individual style's chart and adjustments before changing size.

What if XS fits my body but leaves too little room at the bust?

Look at swimwear sized by band and cup for more specific bust sizing. The Swimwear Size Chart and Cup-Sized Bikini Size Chart can help you browse those options.