Quick answer
For a secure, flattering fit, choose your regular bikini bottom size and use the side ties to adjust tension. Tieside briefs work best when the fabric sits flat without digging in, and the ties are snug but not tight enough to create bulges.
Why fit matters more with tieside briefs
Unlike fixed-side bottoms, tieside bikini briefs rely on you to set the hip opening. If the ties are too loose, the brief can sag or shift; too tight and the fabric may pucker or create unwanted pressure points. The goal is a smooth line from hip to leg.
Most tieside briefs are low rise, so pay attention to how the waistband sits on your hips. A brief that fits well in the seat may feel loose at the waist if your hip-to-waist ratio is narrow. The side ties help, but they can't fix a size that's fundamentally too large.
Fabric stretch and recovery matter
Tieside briefs come in different knits and fiber blends. A crochet knit with high elastane content (like the Twiga) will hold its shape differently than a smooth seamless polyamide blend (like the Boudoir Beach). The more elastane, the more the fabric snaps back, which can make the fit feel firmer.
If you're between sizes, consider the fabric's stretch. A style with 11-27% elastane will give more forgiving stretch than one with only 5% elastane. When in doubt, size up for a softer hold or size down for more compression—but never rely on the ties to compensate for a full size difference.
Decision rules for tieside bikini brief sizing
- Start with your usual bottom size: Order the same size you wear in other low-rise bikini bottoms. Tieside briefs are designed to fit your regular size; the ties adjust the hip opening, not the overall length or seat coverage.
- Check the rise and coverage: Most tieside briefs are low rise with moderate coverage. If you prefer more rear coverage, look for a style described as 'high cut to the reverse' like the Boudoir Beach. If you want less, a standard tieside will work. Read the description for coverage notes—tieside does not automatically mean cheeky.
- Adjust ties for a smooth fit: Tie the side straps so the fabric lies flat against your skin without gaping or digging. The gold beads or rings should sit at your hip bone, not above or below. If the ties leave deep marks, loosen them; if the brief shifts when you move, tighten slightly. The ties should feel secure but not restrictive. Re-tie after swimming or extended wear.
Product facts
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Twiga Tieside Bikini Brief: The Twiga Tieside Bikini Brief is a geometric crochet knit with 11% elastane and gold bead ties. The higher elastane content gives firm recovery, so this style runs true to size with minimal sagging over time.
Twiga Tieside Bikini Brief
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Boudoir Beach Magenta Tieside Bikini Brief: The Boudoir Beach Magenta Tieside Bikini Brief has a smooth seamless design with 14% elastane and gold-tone rings. The seamless construction and moderate stretch make this a good choice if you prefer a sleek look with adjustable tension at the sides.
Boudoir Beach Magenta Tieside Bikini Brief
Who should choose tieside bikini briefs
Best for
- Women who want adjustable hip fit without changing sizes
- Those who prefer low-rise, minimal-coverage bottoms with a customisable fit
Not ideal for
- Anyone who needs full tummy control or high-waist coverage—tieside briefs sit on the hipbone
- Swimmers who do high-intensity water sports where ties may loosen
