A practical guide to the style, the fit, and why it works

What Is a Tie Side Bikini?

A tie side bikini bottom is exactly what it sounds like: a bikini bottom where both sides fasten with ties rather than a fixed waistband. The ties sit at each hip and can be adjusted each time you put the piece on, which gives you control over fit, coverage, and leg height that a standard elastic waist does not.
The style has been around for decades and has remained popular not because of trends but because the mechanics are genuinely useful. This guide covers how tie sides work, how to wear them, how they compare to other bottom styles, and what to look for when buying.

How a tie side bikini works

Because sizing is adjustable, tie side bottoms work across a wider range of body shapes than fixed-waist styles.

The bottom is held in place by two ties, one at each hip. You knot them yourself, which means the fit is personal to your body rather than fixed at manufacture. Most tie side bottoms use long fabric or string ties that can be knotted at different heights: tighter and higher creates a more elevated leg line, lower and looser gives more coverage and a more relaxed silhouette.

Because sizing is adjustable, tie side bottoms tend to work across a wider range of body shapes than fixed-waist styles. The knot sits at the widest point of the hip, framing rather than cutting across it. The high-cut leg that most tie side styles create draws the eye down and along the leg, making the leg appear longer.

Coverage depends on the cut of the fabric itself, not just the tie position. Tie side bottoms come in everything from minimal to full coverage. The tie determines where the piece sits; the cut determines how much it covers.

Tie side vs other bikini bottom styles

Understanding where tie side sits relative to other bottom styles helps you decide whether it is the right choice for a particular trip or activity.

Tie side vs brief: A brief has a fixed elastic waist and sits flat against the body. It is more secure for active swimming and requires no adjustment. A tie side gives better fit customisation and a more elongating silhouette but will loosen in the water over time. For lounging and moderate swimming, tie side is the better-looking option. For serious water activity, a brief holds better.

Tie side vs high-waist: A high-waist bottom covers the midriff and sits above the natural waist. It suits different styling objectives. A tie side tends to show more skin and creates a longer leg line; a high-waist creates a more covered, retro silhouette. Both work on most body shapes but for different reasons.

Tie side vs strappy brief: Strappy briefs use fixed hardware and structured strapping for a more directional look. They are more secure than tie sides but less adjustable. The choice is primarily aesthetic.

Tie side vs reversible: Reversible bottoms have a print on each side and typically use a fixed waistband. Paolita’s Semira bottom comes in both tie side and reversible configurations, so you can have both benefits if the style is available in the print you want.

How to tie a tie side bikini correctly

Start by making sure both ties are pulled to equal lengths on each side before you knot. An uneven knot will sit off-centre and pull the fabric asymmetrically.

Use a double bow rather than a single knot. A single knot tightens in the water and becomes difficult to undo. A double bow holds securely and releases easily.

For a higher leg line, tie at or just above the natural waist. For more coverage and a lower silhouette, tie at the hip bone. Both work; choose based on the look you want and the coverage you need.

The ties will loosen slightly in water. This is normal. Check and retighten after swimming rather than overtightening before you go in.

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Tie side bikinis for travel: packing and care

Tie side bottoms are among the most practical swimwear styles to pack. They fold flat, the ties compress without damage, and they take up significantly less space than bottoms with structured waistbands or hardware. For carry-on-only travel, this matters.

To pack without tangling: fold the bottom in half lengthways, then wrap the ties around the folded fabric before placing in a mesh bag. The ties stay contained and the fabric does not crease.

For care: rinse in cold water immediately after use, particularly after salt water or pool water exposure. Do not wring the ties; press the water out gently. Lay flat to dry away from direct sunlight. Machine washing damages the fabric and degrades the elastic over time. Hand wash in cool water with a gentle detergent.

Italian technical fabric, which Paolita uses across the swimwear range, holds its shape and colour well when cared for correctly. A well-maintained piece will last multiple seasons.

The Paolita tie side edit: SS26

Paolita produces three tie side bottom silhouettes in the SS26 collection, each with a distinct character. All are made in Italian technical fabric and produced in limited numbers.

  The Semira Bottom — from £99

  The classic tie side silhouette in the Paolita range. Soft adjustable ties at each hip, standard to moderate coverage, clean high-cut leg. Available in the SS26 printed collections: Sole Mio, Palma, Ceramica, Tesoro, and Maiolica. The Sole Mio Semira is a bestseller and currently low in stock.

  The Nora Bottom — from £105

  The Nora adds two details to the tie side format: a placement print designed to sit specifically at the tie position, and hand-sewn tassels at each tie. The knot becomes a design feature rather than just a fastening. Available in Sole Mio, Palma, Amalfi, Maiolica, Tesoro, and Black. The Black Nora is finished with white piping and is the solid-colour option for those who want the silhouette without a print.

  The Luna Bottom — from £105

  The Luna uses Italian ribbed or metallic lycra rather than the printed technical fabric of the Semira and Nora. Finished with gold hardware and shell details at each tie. The material does the work rather than the print. Available in Laguna (turquoise ribbed lycra), Sfumato Olive (metallic), Sfumato Pink (metallic), and Toscano.

Who should wear a tie side bikini

Tie side bottoms suit most body shapes because the fit is adjusted to the individual rather than standardised. They work particularly well for anyone who has found that fixed-size swimwear does not fit symmetrically, pulls on one side, or sits differently across the hip.

They are a practical choice for travel because they pack flat and take up minimal space. They are less suited to intensive swimming because the ties loosen in water, but for poolside, beach, and moderate sea swimming they hold well with a double bow knot.

For anyone unsure between the Semira, Nora, and Luna: the Semira is the most versatile starting point. Clean silhouette, multiple print options, and the most straightforward tie at the hip. The Nora suits those who want a more detailed finish. The Luna is the choice for those who prefer texture and hardware over print.

Shop the Paolita tie side collection

Paolita’s full bikini edit includes tie side styles across the SS26 printed collections, alongside underwire tops, one-pieces, and reversible swimwear. Limited editions. Free worldwide shipping on orders over £250.

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