Catalyst Bra Sizing

Fits snug at first, relaxes after 1 wear.

Your Bra Size

Knix Size

PumpEase Bra Sizing

Your Bra Size

PumpEase Bra Size

Leakproof Nursing Bra Sizing

Your Bra Size

Knix Size

Leakproof Pads Sizing

	Cups
M	A-D
XL	DD-G

Longevity Bra Sizing

	Band (in)	Band (cm)
S	32"	81cm
M	34"	86cm
L	36"	91.5cm
XL	38"	96.5cm

Shopping for an F or G cup? Try the Catalyst Sports Bra or the Padded V-Neck Bra

Sizing

Your Bra Size

Knix Size

Shopping for an F or G cup? Try the Catalyst Sports Bra or the Padded V-Neck Bra

Your Bra Size

Knix Size

The Every Bodysuit Sizing

	Band (in)	Band (cm)
S	32"	81cm
M	34"	86cm
L	36"	91.5cm
XL	38"	96.5cm
XXL	40"	101.6cm

*Bodysuits fit up to a DD cup.

Racerback Sizing

	Band (in)	Band (cm)
S	32"	81cm
M	34"	86cm
L	36"	91.5cm
XL	38"	96.5cm
XXL	40"	101.6cm

*Cup ranges from A-DD

Shopping for an F or G cup? Try the Catalyst Sports Bra or the Padded V-Neck Bra

Underwear

	Hips (in)	Hips (cm)	Pant
S	33"-37"	84-94	2-6
M	38"-41"	96-104	8-10
L	42"-44"	106-112	12-14
XL	45"-47"	114-120	16-18
XXL	48"-50"	122-128	20-22

One Piece

	Band (in)	Fits Cups
S	32"	A-DD
S+	32"	E-G
M	34"	A-DD
M+	34"	E-G
L	36"	A-DD
L+	36"	E-G
XL	38"	A-DD
XL+	38"	E-G
XXL	40"	A-DD
XXL+	40"	E-G

One Piece

	Band (in)	Fits Cups
S	32"	A-DD
S+	32"	E-G
M	34"	A-DD
M+	34"	E-G
L	36"	A-DD
L+	36"	E-G
XL	38"	A-DD
XL+	38"	E-G
XXL	40"	A-DD
XXL+	40"	E-G

Don't Sweat It T-Shirt

	Bust (in)	Natural Waist (in)	Hips (in)
S	33"-35"	26"-28"	36"-38"
M	36"-37"	29"-30"	39"-40"
L	38"-40"	31"-33"	41"-43"
XL	41"-43"	34"-36"	44"-46"
XXL	44"-45"	37"-38"	47"-48"
XXXL	46"-48"	39"-41"	49"-51"

Sleep Set

	Bust	Waist	Hip
S	34"	27"	37"
M	37"	30"	40"
L	40"	33"	43"
XL	43"	38"	46"
XXL	47"	43"	50"
XXXL	51"	48"	53"

Socks Sizing

	US	UK	EU
S	6-8	3.5-5.5	36-38.5
M	8.5-10	6-7.5	39-42

How To Measure

Our bras will fit a bit differently than you’re used to, so we encourage you to use the guide below to find your perfect size.

Please wear an unpadded or lightly lined bra while taking these measurements (compression bras and padded bras will alter the results).

Band Size (Ribcage measurement)

Measure snugly around your ribcage, directly under your bust. Add 2” to your underbust measurement, & round up to the closest even number.

31” + 2” = 33”, rounded up to 34” Band size = 34”

Cup Size (Full bust measurement)

Wrap the measuring tape snugly around the fullest part of your bust. Compare yourfull bust measurement to the ribcage measurement that you took (please use the initial measurement result before adding two inches or rounding up to the nearest even number). For every inch difference, add a cup size.

31” ribcage measurement & 36” across-bust measurement = 5” difference
Go up 5 cup sizes. Cup size = 34DD

Cup Size Guide