Front Closure Racerback Seamless Bras

Colour: Quantum Grey

3.9 from 2,074 ratings

We built this style for days when reaching behind your back to clasp a band is out of the question. The front clasp snaps shut between the cups, while an underwire lifts heavy breast tissue into smooth, unlined fabric. Quantum Grey sits quietly under light grey or dark shirts without showing high-contrast edges.

$27.99

Cut in bands 32 to 48, cups A to K.

Also cut in 7 other colours

How this one is put together

Front hook closure
The front clasp lets you slip in and fasten up quickly. It sits flat against your sternum, holding the cups steady without any hardware rubbing against your spine.
Racerback geometry
We angled the back into a racerback cut to stop shoulder straps from sliding off your frame. The wide fabric spreads the load across your upper back instead of digging into your traps.
Unlined underwire cups
Full coverage cups encase the bust fully to contain upper tissue and stop side spillage. Underwires lift from beneath, giving natural separation and lift without added foam padding.
Smooth grey finish
Quantum Grey gives a clean, muted look under everyday tops. The smooth fabric stays flat beneath jersey knits and T-shirts, giving you full coverage support without visible cup texture.

Getting the size right

Take a snug under bust measurement on a full exhale, then an over bust measurement with the tape resting. The gap between the two sets your cup letter.

Open the fit finder

Sister sizing works here too: if the band is tight, move up a band and down a cup. How that works.

Size chart for this style

108 band and cup pairs, taken from our own chart for this cut.

Band	Under bust	A	B	C	D	DD	E	F	G	H	I	J	K
32	27.6	32.3	33.3	34.3	35.3	36.3	37.2	38.2	39.2	40.2	41.2	42.2	43.2
34	29.5	34.2	35.2	36.2	37.2	38.2	39.1	40.1	41.1	42.1	43.1	44.1	45.1
36	31.5	36.2	37.2	38.2	39.2	40.2	41.1	42.1	43.1	44.1	45.1	46.1	47.1
38	33.5	38.2	39.2	40.2	41.2	42.2	43.1	44.1	45.1	46.1	47.1	48.1	49.1
40	35.4	40.1	41.1	42.1	43.1	44.1	45.0	46.0	47.0	48.0	49.0	50.0	51.0
42	37.4	42.1	43.1	44.1	45.1	46.1	47.0	48.0	49.0	50.0	51.0	52.0	53.0
44	39.4	44.1	45.1	46.1	47.1	48.1	49.0	50.0	51.0	52.0	53.0	54.0	55.0
46	41.3	46.0	47.0	48.0	49.0	50.0	50.9	51.9	52.9	53.9	54.9	55.9	56.9
48	43.3	48.0	49.0	50.0	51.0	52.0	52.9	53.9	54.9	55.9	56.9	57.9	58.9