Bralette Sizing;

Step 1: What is your t shirt size?

When shopping for our bralettes, we suggest starting your sizing with your 't-shirt size first, and then considering your cup size next. 

Step 2: What is your cup size?

If your cup size is substantially bigger than your t-shirt size, then go up a size.

If your cup size is smaller and your under bust is broader, then we suggest sticking to your t shirt size.

Step 3: Measure around your under bust.

Still having trouble?

You can also check the cm measurement row to get a more accurate idea of the best fit around the body.

COUNTRY	XS	S	M	L	XL
AUS/NZ	8A, 8B, 10AA, 10A	8C, 8D, 8DD, 10B, 12A	10C, 10D, 10DD, 12B, 12C	12D, 14A, 14B, 14C	12D- 12E, 14C-14D
USA/UK/IN	30A, 30B, 32A	30D, 30DD, 32B, 34A	32C, 32D, 32DD, 34B, 34C,	34D, 36A, 36B, 36C	36E-36F
EU/CH/JP/HK/KO	65B, 65C, 70B,	65D, 65E, 65F, 70C, 75B	70D, 70E, 70F, 75C, 75D,	75E, 80B, 80C, 80D	80DD-80E
FR/SP/BG	80B, 80C, 85B	80D, 80E, 80F, 85C, 90B	85D, 85E, 85E, 90C, 90D	90E, 95B, 95C, 95D	95DD-95E
Under bust cm:	75cm	85cm	95cm	100cm	100cm

 

Tip: If you are in between sizes, we always recommend going up a size for extra comfort.

Styles can slightly vary between designs so please contact us in the form below for personalised fitting info.

Check out these ladies below for a visual on how our sizing fits:

Shop bralettes here.

Underwire & Bodysuit Sizing;

Step 1: What is your usual bra size?

When shopping for our underwires, start with your cup size first.

Step 2: Measure around your under bust.

You can also check the cm measurement row to get a more accurate idea of the best fit around the body.

Our bands are adjustable with 3 hook settings, so there is a little room for size variation in each style.

Don't know your cup size?

1. Measure around the largest part of your bust in inches

2. Measure around the ribcage underneath your bust in inches

3. Minus the difference from your bust to ribcage, and check against this chart:

Difference in Inches	0	1	2	3	4	5	6	7
Your Cup Size is:	AA	A	B	C	D	DD	E, F	G

 

Underwear Sizing;

When shopping Kat underwear, we are true to sizes listed below.

If you are in between sizes, we always recommend going up a size for that extra comfort.

Check the CM measurements to measure around your hips for the perfect fit.

COUNTRY	XS	S	M	L	XL
AUS/UK	6	8	10	12	14
US	2-4	4-6	6-8	8-10	10-12
EU	34-36	36-38	38-40	40-42	42-44
Hips measure:	80cm	90cm	100cm	110cm	120cm

 

Shop undies here.