Retro Bikini Brief Fit: Who the Flirtini Suits
By Miss Mandalay - D+ Bras, Swimwear & Bikinis | Published: 2026-11-02
Category: Buying Guides
A practical fit guide to the Flirtini Retro Bikini Brief: who the full-coverage, frill-detailed cut flatters, and when to choose a different bottom.
Quick answer
The Flirtini Retro Bikini Brief is the right choice if you want fuller coverage, a fully lined front, and a frill detail that softens the hip line. If you prefer a minimal cut or a high-waisted silhouette, look elsewhere.
Coverage: what “fuller” means on the Flirtini
The Flirtini is described as a full-coverage brief, so it sits higher on the hip and covers more of the seat than a tie-side or high-leg style. That extra fabric is the main reason it feels secure for swimming and walking, but it also means less skin exposure than a minimal brief.
Because the brief is fully lined, the front stays opaque and smooth even in lighter colours such as Denim Blue. The trade-off is a slightly warmer feel in very hot weather compared with an unlined mesh brief.
The frill detail: flattering or fussy?
The frill runs around the hip and adds a soft horizontal line. On straight or boyish hips it can create the illusion of curve; on very curvy hips it may add volume where you don’t want it. If you already have pronounced hip curves and prefer a clean line, a plain brief will look more streamlined.
The frill is also a practical detail: it helps the brief stay put when you move between lying down and swimming, because the extra layer grips gently rather than rolling.
Retro shape vs retro high waist
This is a retro brief, not a retro high-waisted bikini bottom. It sits on the hip rather than at the natural waist, so it won’t compress or cover the lower stomach the way a high-waist style does. If your main goal is tummy coverage, choose a high-waist bottom instead.
The hip-level cut does work well with cropped or frill-trimmed tops because it keeps the waist area open and balances a fuller top.
Decision rules for the Flirtini Retro Brief
- If you want more coverage than a tie-side: Choose the Flirtini. Its full-coverage cut covers more of the seat and sits higher on the hip than a string or tie-side brief.
- If you want tummy control or a waist-high fit: Skip the Flirtini and choose a high-waist bikini bottom instead; this brief sits on the hip, not the waist.
- If you have straight or boyish hips: The frill adds a curved horizontal line that can make hips look fuller, so this is a flattering choice.
- If you have very curvy hips and prefer a clean line: Choose a plain brief without frill detailing; the frill can add extra volume at the widest point.
- If you are between sizes: The fabric is 72% nylon and 28% elastane, so it has good stretch. Size down if you want a firmer fit, or stay true to size for a relaxed feel.
- If you need a size above XL: The Flirtini stops at XL, so check another style in the range if you need a larger brief.
Product facts
- Flirtini Retro Bikini Brief: Full-coverage retro brief with frill detailing, fully lined, in Denim Blue. The lining keeps the light blue opaque, and the frill adds a soft hip line that suits straighter shapes.

Flirtini Retro Bikini Brief - Flirtini Retro Bikini Brief: Available in sizes XS–XL; the model wears a size XL. The size range stops at XL, so if you usually need a larger brief, this style may not be the right fit.
Who the Flirtini suits
Best for
- Swimmers who want fuller coverage and a secure fit
- Straight or boyish hip shapes that benefit from a frill detail
- Anyone who prefers a fully lined brief in a light colour
Not for
- Those wanting high-waist or tummy coverage
- Very curvy hips that prefer a clean, plain line
- Shoppers who need a size above XL
