Dress Size

Size - cm Waist Top Hip Hips
UK 8 64 78 89
UK 10 69 83 94
UK 12 74 88 99
UK 14 79 93 104
UK 16 84 98 109

Lascivious Size

Size S M L
UK Size 8-10 10-12 12-14
USA Size 4-6 6-18 8-10
European Size 36-38 38-40 44-46
Russia Size 42-44 44-46 46-48

Bra Band Size Conversions:

UK & USA Europe France  Italy Australia
30 65 80 1 8
32 70 85 2 10
34 75 90 3 12
36 80 95 4 14
38 85 100 5 16


To get your Lascivious bra size…or close to!

1. To find out what bra size you are, use a tape measure to get two measurements around the bust area, the underband and the overbust.

2. Underband - The circumference around your body just under the bust, on the ribcage.

3. Overbust – The circumference around your body over the fullest part of your bust. When measuring, lay the tape measure over your nipples, this is where the fullest part of your bust is.

4. Make sure the tape measure is firm when you are taking your underbust measurement, but not so tight that it hurts. When measuring your overbust, the tape measure should be held more loosely around the bust so as not to indent the body.

5. First, take the tape measure and wrap it around the underbust firmly, unlike most stores, we use the measurement without adding any extra inches on; this will give you a bra that will fit to your measurement, not looser.

6. The underband measurements come in even numbers: 30, 32, 34, 36 and so on. If your measurement is an odd number, round it up, so as to not have your underband too tight.

For example:

Measured: 33” round up to 34”
Measured: 30.5” try a 30”, if this feels too tight, increase to 32”

To measure your overbust/cup, lay the tape measure lightly over the nipples and around the back; ensuring it is straight all the way around the body (it may be helpful to get someone else to measure you so they can see the tape measure clearly). The measurement will either be bigger, or the same as the underband measurement. You can get the cup size from the difference between the underband and overbust measurement.

If both measurements are the same, the cup size would be an A-cup, if the overburst measurement is 1” larger, this would be a B-cup, if it was 2” larger this would be a C-cup and so on.

For example:

Underband: 34”

Looking at the chart below, and the measurements in the example, this person would be a 34DD bra.

Underbust " 34 35 36 37 38 39 40
Cup A B C D DD E F


If you find the overbust measurement is in between sizes e.g. 36.5” then round it up to 37 for the overbust. It’s better to go for a slightly bigger cup, than smaller to avoid any bulging out.

The method above is standardised to give you an approximate idea of your size. Our signature fit may feel neater than mass produced, high-street brands, but is broadly true to size. We try to be as accurate as possible within the individual product descriptions, but please note that fit will vary between styles depending on the fabric and design, so we recommend contacting us if you are unsure.