Finding supportive swimwear isn’t simply about choosing your usual cup size. The construction of your swimsuit — from the cups and underwire to the straps and hidden support — can completely change how a style fits and feels.
At Baku, fit, function and fashion are at the heart of our swimwear. With styles designed across A–G cup fittings, our collections include everything from flexible Multi Fit designs and soft cups to moulded cups, underwire and specialised fuller-bust swimwear.
Whether you prefer minimal structure, extra lift or maximum support, understanding these features can help you find swimwear that feels made for you.
What Does Multi Fit Swimwear Mean?
Multi Fit swimwear is designed to comfortably accommodate a range of cup sizes rather than being created for one specific cup fitting.
It’s a great option if you prefer softer construction or want a swimsuit that can adapt naturally to your shape.
Baku's Multi Fit singlets, for example, generally fit A–DD cups and feature soft removable cups, adjustable straps and shelf bra support.
Multi Fit styles can also be particularly useful when combined with adjustable features such as tie backs, which allow the fit beneath the bust to be personalised.
Multi Fit may suit you if: you like flexible sizing, softer construction and a more natural shape.
Soft Cup Swimwear: Comfortable, Natural Support
If you prefer swimwear without the structure of a traditional moulded bra, soft cup swimwear can be a beautiful option.
Baku's soft removable cups provide gentle contouring and can be removed depending on your preferred fit. Our soft cup bralettes are particularly suited to A–C cup customers, combining soft removable cups with contemporary swimwear silhouettes.
But soft cups aren't only for smaller busts.
Baku also offers specialised C–E soft cup longline styles designed to provide lift, coverage, contouring and shaping without an underwire. These styles use features including power net, Lycra under-bust support, side boning and adjustable straps to create additional support.
Soft cups may suit you if: you prefer a natural shape, removable padding or supportive swimwear without a traditional moulded underwire cup.
Moulded Cup Swimwear: Shape, Lift & Contouring
Prefer more definition through the bust? A moulded cup can provide additional shaping and structure.
Moulded cups are shaped to the bust to provide contouring, uplift and support, and when combined with an underwire can offer even greater lift.
For A–D cups, Baku's Booster Bikini Tops are one of our signature options. The Booster features Baku's specially designed moulded underwire cup along with removable booster pads. Keeping the pads in provides additional lift, while removing them creates extra room within the cup.
For fuller busts, Baku also offers D/DD moulded styles with soft moulded underwire cups, wider straps and adjustable and convertible strap options.
Moulded cups may suit you if: you like a defined shape, additional contouring or a more structured bikini-top fit.
Underwire Swimwear: When You Want Extra Lift & Support
For those who prefer more structure, underwire bikini tops are designed to provide support beneath the bust while helping create lift and a secure fit.
And underwire doesn't necessarily have to be visible.
Many Baku styles use hidden underwire, giving you additional support while maintaining a streamlined swimwear silhouette. Baku also uses features such as side boning, Lycra cup support and power mesh across selected fuller-cup styles.
Our D–E Cup Swimwear collection includes specialised underwire bikini tops, singlets and one pieces designed for fuller busts.
Underwire may suit you if: you want additional lift, bust separation, shaping and a more structured fit.
Don't Forget About Your Straps
The right straps can make an enormous difference to the fit of your swimwear.
Adjustable straps allow you to tighten or loosen the fit to suit your body and provide additional bust support. Convertible straps give you different ways to wear your swimsuit and can be crossed over at the back for additional security and support.
For fuller busts, look for wider adjustable straps in selected styles. These can help distribute support while creating a secure fit.
If you prefer strapless swimwear, Baku's bandeau styles use different combinations of gripper tape, side boning, optional straps and moulded or soft removable cups depending on the design.
A–C Cups: Flexible Fits, Soft Cups & Shape
For A–C cups, you have plenty of flexibility depending on the look you want to create.
Soft cup bralettes offer gentle contouring without heavy construction, while triangles provide a classic, adjustable swimwear shape.
If you're looking for more lift and definition, try a Booster Bikini Top. With moulded underwire cups and removable booster pads, the Booster lets you personalise the amount of lift and room within the cup.
Try: soft cup bralettes, triangles, Multi Fit styles, bandeaus and Booster bras.
C–E Cups: Support With or Without Underwire
As you move into C, D and E cup fittings, choosing swimwear with additional support features becomes increasingly important — but that doesn't mean you always need an underwire.
Baku's C–E soft cup longline designs combine removable cups with side boning, adjustable and convertible straps, power net and Lycra under-bust support. This creates lift and shaping without relying on underwire.
If you prefer greater structure, explore our D–E Cup Swimwear. Baku's D/E underwire styles can incorporate hidden underwire, Lycra cup support, power mesh, side boning and adjustable and convertible straps.
Try: longline bras, moulded cups, soft cup longlines and D/E underwire styles.
E–G Cups: Fuller Bust Support Without Compromising on Style
Supportive fuller-bust swimwear should still feel like swimwear you genuinely want to wear.
Baku's E–G Cup Swimwear includes bikinis, singlets and one pieces designed specifically for fuller cup fittings. Current styles include F-cup triangles and E/F/G lace-up bikini tops alongside supportive fuller-cup one pieces and singlets.
Our E/F/G lace-up bra, for example, combines full coverage with underwire, power mesh stability, boning, power mesh cup support and wide adjustable and convertible straps.
If you prefer a triangle silhouette, selected F-cup triangle styles provide a lighter look while retaining supportive features including underwire and power mesh bust support.
Try: F-cup triangles, E/F/G lace-up bras, fuller-cup singlets and supportive underwire one pieces.
Bikini, Singlet or One Piece?
Cup support doesn't stop at bikini tops.
If you'd like more coverage through the body, a supportive singlet can give you the cup fit you need with the coverage of a tankini. Baku's D+ Cup Singlets include styles designed with supportive features such as underwire and shelf support.
Prefer a one piece? Explore our One Piece Swimwear, where you'll find Multi Fit styles alongside specialised D–G cup options.
How Do I Know Which Support Is Right for Me?
Start with how you want your swimwear to feel, not simply the cup size written on the label.
If you prefer a soft, natural shape, look towards soft cups, bralettes and Multi Fit designs. If you want more contouring and definition, try moulded cups. If lift and security are your priorities, underwire, side boning and power mesh can provide additional structure.
Then consider the straps. Adjustable straps allow you to personalise your fit, while wider or convertible straps can provide additional support and versatility.
Most importantly, remember that two people wearing the same cup size may prefer completely different swimwear.
The perfect fit is the one that gives you the combination of coverage, support and shape you feel best wearing.
Find Your Perfect Baku Fit
From flexible A–C cup bralettes and Multi Fit swimwear to moulded Booster bras, D/E underwire styles and supportive E–G cup designs, Baku offers swimwear made for different busts, bodies and support preferences.
Explore the different constructions, try different shapes and discover the fit that works for you.
