Size guide

What size do I choose?

Bum bikinis are designed to cover the essentials. We strive to make all our clothes adjustable so that they can adapt to different body types.

⚠️ However, please note that we do not follow a standard sizing system as our tops are designed for smaller chests. Therefore, when in doubt, we recommend sizing up.

ATOM TOP

General recommendations:

SIZE	Bra Size
XS/S	A & B Cups
M/L	C, D + Cups

However, you should choose your size according to how you want the bikini to look. If you have a B cup but you like to be more covered, we recommend size M/L, and if you have a C or D cup but want a bikini that covers very little, we recommend choosing size XS/S.

ATOM THONG

General recommendations:

SIZE	Waist Measurements	Hip  Measurements
XS/S	55-67 cm	75-91 cm
M/L	68-86 cm	92-100 cm

Remember that the measurements are approximate, and that, in case of doubt, we recommend going up a size.

Visual size reference:

ATLAS TOP

General recommendations:

SIZE	Bra Size
XS/S	A & B Cups
M/L	C, D + Cups

Visual size reference:

ATLAS TRIKINI

General recommendations:

SIZE	Bra Size	Pant Size
XS/S	A Cup	32-38
M/L	B & C Cups	36-40
XL	C, D + Cups	38+

Note: You may experience some difficulty when putting on the trikini, this is normal. It's important to consider that the top part of the trikini is not adjustable, and depending on the width of your chest, it may fit tightly.

To ensure the right fit, follow these steps:

1. Measure the circumference of your chest as shown in this image:

Visual size reference:

If you are still unsure what size to choose and need our assistance, you can contact our customer service department at hola.bumswim@gmail.com and we will help you make the best decision.

PUMP COVERS

SIZE	WIDTH (cm)	HEIGHT (cm)	SLEEVE (cm)
S	57	66	12
M	60	70	14
L	63	73	16