BOOMBA Sticky Inserts Size Guide
So you want to purchase your first BOOMBA sticky insert but don't know which size to get?
March 23, 2026
What Makes BOOMBA Sticky Inserts Different?
Unlike traditional inserts, BOOMBA'S patented inserts are sticky on both sides, which means it sticks to your clothing and to your skin for extra security. It prevents nipple slips and stays hidden under clothing. Another great benefit of the double-sided adhesive is that there is no sewing required. Simply stick the inserts onto your clothes.
BOOMBA Sticky Insert Sizing Chart
BOOMBA sticky inserts are suitable for various body shapes and sizes. However, you need to determine your bra size to make sure you get the best fit for your body.
Demi Boost and Invisible Lift comes in two sizes, Small and Medium while Perfect Boost comes in one size fits all A to D. In comparison, Ultra Boost comes in one size with different cup sizes.
Check out our size guides below to find out which one is suitable for your body. Please note that results may vary depending on breast size and shape. Results will be similar to a double push-up bra and work best with natural breasts.
Ultra Boost Inserts
ULTRA BOOST INSERTS
bra size
UK Size
BOOMBA Bra Size
28A
AA
30A
AA
32A
AA
34A
A
36A
B
38A
C
40A
D
42A
E
44A
F
UK Size
BOOMBA Bra Size
28B
AA
30B
AA
32B
A
34B
B
36B
C
38B
D
40B
E
42B
F
44B
G
UK Size
BOOMBA Bra Size
28C
AA
30C
A
32C
B
34C
C
36C
D
38C
E
40C
F
42C
G
44C
H
UK Size
BOOMBA Bra Size
28D
A
30D
B
32D
C
34D
D
36D
E
38D
F
40D
G
42D
H
44D
I
UK Size
BOOMBA Bra Size
28DD
B
30DD
C
32DD
D
34DD
E
36DD
F
38DD
G
40DD
H
42DD
I
UK Size
BOOMBA Bra Size
28E
C
30E
D
32E
E
34E
F
36E
G
38E
H
40E
I
UK Size
BOOMBA Bra Size
28F
D
30F
E
32F
F
34F
G
36F
H
38F
I
UK Size
BOOMBA Bra Size
28FF
E
30FF
F
32FF
G
34FF
H
36FF
I
UK Size
BOOMBA Bra Size
28G
F
30G
G
32G
H
34G
I
UK Size
BOOMBA Bra Size
28GG
G
30GG
H
32GG
I
UK Size
BOOMBA Bra Size
28H
H
30H
I
UK Size
BOOMBA Bra Size
28HH
I
Demi Boost Inserts
DEMI BOOST INSERTS
bra size
UK Size
BOOMBA Bra Size
Size Category
28A
AA
X-Small
30A
AA
X-Small
32A
AA
X-Small
34A
A
Small
36A
B
Small
38A
C
Small
40A
D
Medium
42A
E
Medium
44A
F
Large
UK Size
BOOMBA Bra Size
Size Category
28B
AA
X-Small
30B
AA
X-Small
32B
A
Small
34B
B
Small
36B
C
Small
38B
D
Medium
40B
E
Medium
42B
F
Large
44B
G
Large
UK Size
BOOMBA Bra Size
Size Category
28C
AA
X-Small
30C
A
Small
32C
B
Small
34C
C
Small
36C
D
Medium
38C
E
Medium
40C
F
Large
42C
G
Large
44C
H
X-Large
UK Size
BOOMBA Bra Size
Size Category
28D
A
Small
30D
B
Small
32D
C
Small
34D
D
Medium
36D
E
Medium
38D
F
Large
40D
G
Large
42D
H
X-Large
44D
I
X-Large
UK Size
BOOMBA Bra Size
Size Category
28DD
B
Small
30DD
C
Small
32DD
D
Medium
34DD
E
Medium
36DD
F
Large
38DD
G
Large
40DD
H
X-Large
42DD
I
X-Large
44DD
J
X-Large
UK Size
BOOMBA Bra Size
Size Category
28E
C
Small
30E
D
Medium
32E
E
Medium
34E
F
Large
36E
G
Large
38E
H
X-Large
40E
I
X-Large
42E
J
X-Large
44E
K
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28F
D
Medium
30F
E
Medium
32F
F
Large
34F
G
Large
36F
H
X-Large
38F
I
X-Large
40F
J
X-Large
42F
K
2X-Large
44F
L
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28FF
E
Medium
30FF
F
Large
32FF
G
Large
34FF
H
X-Large
36FF
I
X-Large
38FF
J
X-Large
40FF
K
2X-Large
42FF
L
2X-Large
44FF
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28G
F
Large
30G
G
Large
32G
H
X-Large
34G
I
X-Large
36G
J
X-Large
38G
K
2X-Large
40G
L
2X-Large
42G
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28GG
G
Large
30GG
H
X-Large
32GG
I
X-Large
34GG
J
X-Large
36GG
K
2X-Large
38GG
L
2X-Large
40GG
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28H
H
X-Large
30H
I
X-Large
32H
J
X-Large
34H
K
2X-Large
36H
L
2X-Large
38H
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28HH
I
X-Large
30HH
J
X-Large
32HH
K
2X-Large
34HH
L
2X-Large
36HH
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28J
J
X-Large
30J
K
2X-Large
32J
L
2X-Large
34J
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28JJ
K
2X-Large
30JJ
L
2X-Large
32JJ
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28K
L
2X-Large
30K
M
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28KK
M
2X-Large
Invisible Lift Inserts
INVISIBLE LIFT INSERTS
bra size
UK Size
BOOMBA Bra Size
Size Category
28A
AA
X-Small
30A
AA
X-Small
32A
AA
X-Small
34A
A
X-Small
36A
B
Small
38A
C
Small
40A
D
Medium
42A
E
Medium
44A
F
Medium
UK Size
BOOMBA Bra Size
Size Category
28B
AA
X-Small
30B
AA
X-Small
32B
A
X-Small
34B
B
Small
36B
C
Small
38B
D
Medium
40B
E
Medium
42B
F
Medium
44B
G
Large
UK Size
BOOMBA Bra Size
Size Category
28C
AA
X-Small
30C
A
X-Small
32C
B
Small
34C
C
Small
36C
D
Medium
38C
E
Medium
40C
F
Medium
42C
G
Large
44C
H
Large
UK Size
BOOMBA Bra Size
Size Category
28D
A
X-Small
30D
B
Small
32D
C
Small
34D
D
Medium
36D
E
Medium
38D
F
Medium
40D
G
Large
42D
H
Large
44D
I
Large
UK Size
BOOMBA Bra Size
Size Category
28DD
B
Small
30DD
C
Small
32DD
D
Medium
34DD
E
Medium
36DD
F
Medium
38DD
G
Large
40DD
H
Large
42DD
I
Large
44DD
J
X-Large
UK Size
BOOMBA Bra Size
Size Category
28E
C
Small
30E
D
Medium
32E
E
Medium
34E
F
Medium
36E
G
Large
38E
H
Large
40E
I
Large
42E
J
X-Large
44E
K
X-Large
UK Size
BOOMBA Bra Size
Size Category
28F
D
Medium
30F
E
Medium
32F
F
Medium
34F
G
Large
36F
H
Large
38F
I
Large
40F
J
X-Large
42F
K
X-Large
44F
L
X-Large
UK Size
BOOMBA Bra Size
Size Category
28FF
E
Medium
30FF
F
Medium
32FF
G
Large
34FF
H
Large
36FF
I
Large
38FF
J
X-Large
40FF
K
X-Large
42FF
L
X-Large
44FF
M
X-Large
UK Size
BOOMBA Bra Size
Size Category
28G
F
Medium
30G
G
Large
32G
H
Large
34G
I
Large
36G
J
X-Large
38G
K
X-Large
40G
L
X-Large
42G
M
X-Large
44G
N
X-Large
UK Size
BOOMBA Bra Size
Size Category
28GG
G
Large
30GG
H
Large
32GG
I
Large
34GG
J
X-Large
36GG
K
X-Large
38GG
L
X-Large
40GG
M
X-Large
42GG
N
X-Large
44GG
O
X-Large
UK Size
BOOMBA Bra Size
Size Category
28H
H
Large
30H
I
Large
32H
J
X-Large
34H
K
X-Large
36H
L
X-Large
38H
M
X-Large
40H
N
X-Large
42H
O
X-Large
44H
P
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28HH
I
Large
30HH
J
X-Large
32HH
K
X-Large
34HH
L
X-Large
36HH
M
X-Large
38HH
N
X-Large
40HH
O
X-Large
42HH
P
2X-Large
44HH
Q
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28J
J
X-Large
30J
K
X-Large
32J
L
X-Large
34J
M
X-Large
36J
N
X-Large
38J
O
X-Large
40J
P
2X-Large
42J
Q
2X-Large
44J
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28JJ
K
X-Large
30JJ
L
X-Large
32JJ
M
X-Large
34JJ
N
X-Large
36JJ
O
X-Large
38JJ
P
2X-Large
40JJ
Q
2X-Large
42JJ
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28K
L
X-Large
30K
M
X-Large
32K
N
X-Large
34K
O
X-Large
36K
P
2X-Large
38K
Q
2X-Large
40K
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28KK
M
X-Large
30KK
N
X-Large
32KK
O
X-Large
34KK
P
2X-Large
36KK
Q
2X-Large
38KK
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28L
N
X-Large
30L
O
X-Large
32L
P
2X-Large
34L
Q
2X-Large
36L
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28LL
O
X-Large
30LL
P
2X-Large
32LL
Q
2X-Large
34LL
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28M
P
2X-Large
30M
Q
2X-Large
32M
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28MM
Q
2X-Large
30MM
R
2X-Large
UK Size
BOOMBA Bra Size
Size Category
28N
R
2X-Large
Demi Boost (Lite) Inserts
DEMI BOOST (LITE) INSERTS
bra size
UK Size
BOOMBA Bra Size
28A
AA
30A
AA
32A
AA
34A
A
36A
B
38A
C
40A
D
42A
E
44A
F
UK Size
BOOMBA Bra Size
28B
AA
30B
AA
32B
A
34B
B
36B
C
38B
D
40B
E
42B
F
44B
G
UK Size
BOOMBA Bra Size
28C
AA
30C
A
32C
B
34C
C
36C
D
38C
E
40C
F
42C
G
44C
H
UK Size
BOOMBA Bra Size
28D
A
30D
B
32D
C
34D
D
36D
E
38D
F
40D
G
42D
H
44D
I
UK Size
BOOMBA Bra Size
28DD
B
30DD
C
32DD
D
34DD
E
36DD
F
38DD
G
40DD
H
42DD
I
UK Size
BOOMBA Bra Size
28E
C
30E
D
32E
E
34E
F
36E
G
38E
H
40E
I
UK Size
BOOMBA Bra Size
28F
D
30F
E
32F
F
34F
G
36F
H
38F
I
UK Size
BOOMBA Bra Size
28FF
E
30FF
F
32FF
G
34FF
H
36FF
I
UK Size
BOOMBA Bra Size
28G
F
30G
G
32G
H
34G
I
UK Size
BOOMBA Bra Size
28GG
G
30GG
H
32GG
I
UK Size
BOOMBA Bra Size
28H
H
30H
I
UK Size
BOOMBA Bra Size
28HH
I
How To Wear BOOMBA Sticky Inserts?
For some users, it does take a few tries to get it in the right position (just like getting your sticky bra to stop being lopsided), so we recommend checking out our quick tutorials for a better idea of how to use the inserts. We recommend putting the inserts on in front of a mirror to ensure it is even on both sides. You can adjust the level of cleavage according to your own preference. Just remember to scoop and stick, to ensure your cleavage stays put throughout the day!
What To Wear With BOOMBA Sticky Inserts
BOOMBA inserts need to be supported by the clothing they're used with. They work best with structured, thick, and tight (non stretchy) clothing. Since they are inserts, they need to be held up by the clothing itself. If your top is stretchy and not tight, the top will not be able to push up against the inserts to hold your cleavage in place.
If you want to know more about compatible clothing types for BOOMBA sticky inserts, click here.
How to Measure Your Bra Size
Measuring your bra size helps you determine which size to get for BOOMBA sticky inserts. We have a step-by-step guide on how to measure your bra size correctly.
Your BOOMBA Fit Guide Wrap-Up
Finding your perfect size for BOOMBA sticky inserts is easy as long as you follow this guide! Browse through our collection and meet your new bra solution in the color and size you want.
For any concerns or suggestions you'd like us to know, send us an email or reach out to us on Instagram!