Bras size 100D

Do you wear size 100D ? Size 100D is one of the core sizes in our plus size lingerie range, combining a 100 cm band size with a well-developed D cup. Our selection is wide: full cup, balconette, wire-free, lace, sport, nursing… Find the model made for you.

100D underwire bras

For a fuller bust such as a D cup with a 100 cm band size, underwires are not a constraint — they are an ally. They structure the bust, relieve the shoulders by redistributing weight across the ribcage, and create a more balanced silhouette under your clothes.

Choosing the right model is key. In size 100D, the full cup style is particularly recommended: it fully encases the bust without any side spillage. This is precisely why our Arum bra has become a bestseller. This floral lace full cup combines solid underwires, tulle lining and satin lacing: a balance carefully designed for fuller busts that refuse to choose between support and elegance.

Beyond the cut, fabric plays a key role. Microfibre offers an invisible softness under clothes, ideal for everyday wear. Lace, more feminine and graphic, is easily dressed up for a special occasion. Some models feature wide or padded straps, which noticeably improve comfort over time.

Do you prefer equally effective support but without any feeling of pressure? Discover in the next section our 100D wire-free bras, designed for those who seek lightness and freedom of movement without compromising on support.

100D wire-free bras

Freedom of movement, absolute comfort, a feeling of lightness throughout the day: the wire-free bra meets very real needs. In size 100D, it is particularly appreciated for long working days, relaxing weekends or simply for women who experience discomfort with traditional underwires.

But a wire-free bra in a plus size must be chosen with care. A poorly adapted model may lack support. In size 100D, favour models with pre-formed or moulded cups, which maintain the shape of the bust without compressing it. Wide straps and a reinforced back are also essential criteria for distributing the weight of the bust effectively.

Our Complice model, available in size 100D, perfectly illustrates this approach: its soft microfibre construction offers structured support without any underwire, with comfortable straps and a stable back band. The result: a plus size bra that goes unnoticed, while providing genuine support.

In terms of style, microfibre remains the safe choice for an invisible finish under clothes, while lace adds a feminine touch for moments when you want to treat yourself.

But how do you choose between the two based on your body shape and habits? The next section guides you step by step in choosing your size 100D bra.

Understanding size 100D: band size and cup

In size 100D, the 100 refers to the band size measured under the bust, and the D refers to the cup volume — approximately 20 to 22 cm difference from the bust measurement.

Key point: a D cup in size 100 represents a significantly larger volume than a D cup in size 85 or 90. Volume increases with band size — this is the principle of sister sizes, useful to know if you are hesitating between two sizes.

You can consult our special bra size guide at any time.

Recommended styles for size 100D

In size 100D, not all cuts are equal. Two styles stand out particularly for fuller busts:

• The full cup bra fully encases the bust, prevents any spillage and offers optimal support.
• The balconette bra enhances the décolletage while providing good support.

Conversely, triangle cups or push-up models are generally not recommended in size 100D: they lack the structure needed to support such a significant volume.

The choice of style is inseparable from the choice of fabric. On to the fabrics and support levels suited to size 100D.

Fabrics and support levels suited to size 100D

The fabric determines both comfort and support.

• Microfibre is the everyday ally: soft, breathable, invisible under clothes, it adapts to movement without losing its shape. It is the preferred choice for a long and active day.

• Lace brings femininity and elegance. In plus sizes, opt for lace paired with a structured lining, where the floral lace rests on a reinforced tulle that supports without constraining.

In both cases, check these key points: wide and adjustable straps, back with multiple rows of hooks, and a stable underband. These technical details make the difference between a comfortable size 100D bra and a model that gets abandoned after two wears.

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