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Part 3 of a 3 Part Series: Understanding Unlined Bras

Updated: Nov 11

Experience a t-shirt bra without the bulk


Unlined bras are the perfect combination of elegance and expert engineering, often misunderstood in the world of lingerie. While some may think they offer less support than lined styles, the truth is that a well-designed unlined bra will provide better shape, lift, and comfort—bra engineering. 


Worried about an unlined bra showing under your clothes? That’s where seamless options come in. Seamless unlined bras have smooth, seam-free cups that disappear under your clothes, offering a subtle, rounded shape while still letting you enjoy the airy, lightweight feel of an unlined style.


Whether you’re exploring unlined bras for everyday elegance, a low-cut outfit, or a sexy addition to your lingerie collection, there’s a style to suit every preference and every wardrobe.


SHAPE MATTERS 

Unlined bras typically come in three shapes: demi, plunge, and full.


  • Demi cup styles sit lower across the chest with wider-set straps and a higher center gore (where the wires meet between the cups). They expose a square neckline, offering better concealment of your bra under clothing. The vertical seam in a demi bra is what provides the lift. Unlined demi cups provide a wider range of coverage than their lined counterparts. If you need a really low cut bra for a specific outfit, an unlined demi cup may be exactly what you are looking for. 

  • Plunge cup styles are triangular in shape, offering a bit more breast coverage, and feature a lower center gore and straps that sit closer together. If you have issues with shoulder straps slipping or a depression of the sternum, you may benefit from a plunge shape. This type of cup style can feature a fabric overlay that functions to help hold your tissue within the cup, preventing the spillage that leads to double boob. A vertical seam provides the lift. 

  • Full cup styles offer the high center gore of demi cups and the full coverage of plunge cups, providing maximum support and stability. This style is best suited for those with larger breasts that are heavy and/or have less dense tissue. A full cup bra may be seamed or seamless and makes a great daily driver as the extra coverage provides great support throughout the day.

     

What is the difference between three-part cups and seamless cups?


  • Three and four-part cups feature seams that function to lift (vertical seam) and project breast tissue (horizontal seams) out from under the armpits. For heavier breasts, we turn to seamed bras, true feats of architecture and engineering, that minimize and slim the silhouette while keeping the weight supported by the band (never the shoulders). 

  • Seamless cups are often heat molded to create the shape and lift of a seamed bra. Featuring a smooth cup free from seams, these bras hide under clothes beautifully. Seamless cups create a more subtle rounder shape. If you are interested in unlined bras, but still want your bras to disappear under your thinnest clothing, seamless cups might be for you. 


LEARN MORE

Curious about why cup shapes matter so much? In this Suelto podcast episode, we talk about shape, fit, and what it means for your everyday comfort.


Do you want to learn more about how your bra should fit? Not sure of your current size or ideal shape? Our expert fitters are here to help, always complimentary. We stock a wide size range, 30-44 band sizes and A-O cups. Pop in when it suits you, or book ahead online for a guaranteed time. Join our mailing list to stay up-to-date with fun events happening at Suelto. Never miss a sale when you are signed up for our mailing list!

 

Prefer privacy? Request a private, after-hours fitting just for you.



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