Size Charts
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SIZE CHARTS
Catalyst Sports Bra - Warehouse Sale Sizing
This is the most supportive high impact sports bra you’ll ever put on. Designed to drastically reduce breast movement, the Catalyst outperformed over 800 bras it was tested against. Get comfortable performing your best.
32 34 36 38 40 42
A 1 1 2
B 1 2 3 3
C 2 4 3 5 5
D 4 4 5 5 8 8
DD 6 6 7 7 8 8
E 6 6 7 7 8 8
Catalyst Sports Bra - Warehouse Sale Sizing
This is the most supportive high impact sports bra you’ll ever put on. Designed to drastically reduce breast movement, the Catalyst outperformed over 800 bras it was tested against. Get comfortable performing your best.
32 34 36 38 40 42
A 1 2 2
B 1 2 3 3
C 2 4 3 5 5
D 4 4 5 5 8 8
DD 6 6 7 7 8 8
E 6 6+ 7 7+ 8 8+
F 6+ 6+ 7+ 7+ 8+ 8+
G 6++ 6++ 7++ 7++ 8++ 8++
H 6++ 6++ 7++ 7++ 8++ 8++

*G and H cups are coming soon

Catalyst Sports Bra - Warehouse Sale Sizing
This is the most supportive high impact sports bra you’ll ever put on. Designed to drastically reduce breast movement, the Catalyst outperformed over 800 bras it was tested against. Get comfortable performing your best.
32 34 36 38 40 42
A 1 2 2
B 1 2 3 3
C 2 4 3 5 5
D 4 4 5 5 8 8
DD 6 6 7 7 8 8
E 6 6+ 7 7+ 8 8+
F 6+ 6+ 7+ 7+ 8+ 8+
G 6++ 6++ 7++ 7++ 8++ 8++
H 6++ 6++ 7++ 7++ 8++ 8++

*G and H cups are coming soon

Catalyst Sports Bra - Warehouse Sale Sizing
Band (in) Band (cm)
S 32" 81cm
M 34" 86cm
L 36" 91.5cm
XL 38" 96.5cm
XXL 40" 101.6cm
Catalyst Sports Bra - Warehouse Sale Sizing
Band (in) Fits Cups
28-30 A/B (XS) 28"-30" A/B
30-32 A/B (S) 30"-32" A/B
30-32 C/D (S+) 30"-32" C/D
32-34 A/B (M) 32"-34" A/B
34-36 A/B (L) 34"-36" A/B
36-38 A/B (XL) 36"-38" A/B

* To get your band size, measure your ribcage, round up to the nearest even number and add 2"

Catalyst Sports Bra - Warehouse Sale Sizing
Band (in) Fits Cups
XXS 28" A-DD
XXS+ 28" E-G
XS 30" A-DD
XS+ 30" E-G
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
XXXL 42" A-DD
XXXL+ 42" E-G
XXXXL 44" A-DD
XXXXL+ 44" E-G

*Cup ranges from A-G

Catalyst Sports Bra - Warehouse Sale Sizing
This is the most supportive high impact sports bra you’ll ever put on. Designed to drastically reduce breast movement, the Catalyst outperformed over 800 bras it was tested against. Get comfortable performing your best.
32 34 36 38 40 42 44 46 48
A S S S M M M L L L
B S S M M M L L L XL
C S S M M M L L L XL
D S M M M L L L XL XL
DD S M M M L L L XL XL
E M M M L L L XL XL XL
F M M M L L L XL XL XL
G M M L L L XL XL XL XL
Catalyst Sports Bra - Warehouse Sale Sizing
This is the most supportive high impact sports bra you’ll ever put on. Designed to drastically reduce breast movement, the Catalyst outperformed over 800 bras it was tested against. Get comfortable performing your best.
32 34 36 38 40 42
A 1 2 2
B 1 2 3 3
C 2 4 3 5 5
D 4 4 5 5 8 8
DD 6 6 7 7 8 8
E 6 6+ 7 7+ 8 8+
F 6+ 6+ 7+ 7+ 8+ 8+
G 6++ 6++ 7++ 7++ 8++ 8++
H 6++ 6++ 7++ 7++ 8++ 8++

*G and H cups are coming soon

Leakproof Pads Sizing
Cups
M A-D
XL DD-G
Catalyst Sports Bra - Warehouse Sale Sizing
Hips (in) Hips (cm) Pant
XS 30"-33" 76-84 0-2
S 34"-37" 86-94 4-6
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 18-20
XXXL 51"-53" 129-135 22-24
XXXXL 54"-56" 137-142 26
Catalyst Sports Bra - Warehouse Sale Sizing
Hips (in) Hips (cm) Jean Size
XS 25"-27" 63-70 7(does not fit womens sizes)
S 28"-30" 71-77 8/10(does not fit womens sizes)
M 31"-35" 78-88 24/25
L 36"-40" 91-101 26/27/28
XL 41"-44" 104-111 29/30
XXL 45"-48" 114-121 31/32
SuperStretch
Hips (in) Hips (cm) Pant
S/M 33"-41" 84-104 2-10
L/XL 42"-47" 106-120 12-18
XXL/ XXXL 51"-53" 129-135 24-26
Catalyst Sports Bra - Warehouse Sale Sizing
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
XXXL 42" A-DD
XXXL+ 42" E-G

*Cup ranges from A-G

*Bodysuits fit up to a G cup.

Hips (in) Pant
S 33"-37" 2-6
S+ 33"-37" 2-6
M 38"-41" 8-10
M+ 38"-41" 8-10
L 42"-44" 12-14
L+ 42"-44" 12-14
XL 45"-47" 16-18
XL+ 45"-47" 16-18
XXL 48"-50" 20-22
XXL+ 48"-50" 20-22
XXXL 51"-53" 24-26
XXXL+ 51"-53" 24-26

*If you're larger on the bottom, we recommend you size up

Use these band and hip measurements to determine your correct size
Every size in our bodysuit will fit from an A cup to a G cup (yep, it's true!). If you're larger on the bottom, we recommend you size up.
Catalyst Sports Bra - Warehouse Sale Sizing
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
XXXL 42" A-DD
XXXL+ 42" E-G

*Cup ranges from A-G

*Bodysuits fit up to a G cup.

Catalyst Sports Bra - Warehouse Sale Sizing
Bust (in) Waist (in)
XS 32" 24"
S 34" 27"
M 37" 30"
L 40" 33"
XL 43" 38"
XXL 47" 43"
XXXL 51" 48"
XXXXL 55" 52"
Catalyst Sports Bra - Warehouse Sale Sizing
Bust Waist Hip
XS 32" 24" 33"
S 34" 27" 37"
M 37" 30" 40"
L 40" 33" 43"
XL 43" 38" 46"
XXL 47" 43" 50"
XXXL 51" 48" 53"
XXXXL 55" 52" 55"
Catalyst Sports Bra - Warehouse Sale Sizing
Bust (in) Waist (in)
XS 32" 24"
S 34" 27"
M 37" 30"
L 40" 33"
XL 43" 38"
XXL 47" 43"
XXXL 51" 48"
XXXXL 55" 52"
Catalyst Sports Bra - Warehouse Sale Sizing
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
XXXL 42" A-DD
XXXL+ 42" E-G
Catalyst Sports Bra - Warehouse Sale Sizing
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
XXXL 51"-53" 129-135 22-24
Catalyst Sports Bra - Warehouse Sale Sizing
Age Height (in) Weight (lbs)
2T 1 1/2-2Y 33"-36" 28-32 lbs
3T 2-3Y 36"-39" 32-36 lbs
4T 3-4Y 39"-42" 36-40 lbs
5T 4-5Y 42"-45" 40-46 lbs
6T 5-6Y 45"-48" 46-52 lbs
Socks Sizing
Knix Size Shoe Size
S/M 6-9
L/XL 10-11.5
OS 6-10
Catalyst Sports Bra - Warehouse Sale Sizing
Bust Waist Hip
XS/S/M 32"-37" 24"-30" 33"-40"
L/XL/XXL 40"-47" 33"-43" 43"-50"
XXXL/XXXXL 51"-55" 48"-52" 53"-55"
Catalyst Sports Bra - Warehouse Sale Sizing
Bust Waist Hip
S/M/L 34"-40" 27"-33" 37"-43"
XL/XXL/XXXL 43"-51" 38"-48" 46"-53"
Catalyst Sports Bra - Warehouse Sale Sizing
Bust Waist Hip
XS 32" 24" 33"
S 34" 27" 37"
M 37" 30" 40"
L 40" 33" 43"
XL 43" 38" 46"
XXL 47" 43" 50"
XXXL 51" 48" 53"
XXXXL 55" 52" 55"
Catalyst Sports Bra - Warehouse Sale Sizing
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
XXXL 42" A-DD
XXXL+ 42" E-G

*Cup ranges from A-G

*Bodysuits fit up to a G cup.

Hips (in) Pant
S 33"-37" 2-6
S+ 33"-37" 2-6
M 38"-41" 8-10
M+ 38"-41" 8-10
L 42"-44" 12-14
L+ 42"-44" 12-14
XL 45"-47" 16-18
XL+ 45"-47" 16-18
XXL 48"-50" 20-22
XXL+ 48"-50" 20-22
XXXL 51"-53" 24-26
XXXL+ 51"-53" 24-26

*If you're larger on the bottom, we recommend you size up

Use these band and hip measurements to determine your correct size
Every size in our bodysuit will fit from an A cup to a G cup (yep, it's true!). If you're larger on the bottom, we recommend you size up.
Catalyst Sports Bra - Warehouse Sale Sizing
Hips (in) Hips (cm) Pant
XS 30"-33" 76-84 0-2
S 34"-37" 86-94 4-6
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 18-20
XXXL 51"-53" 129-135 22-24
XXXXL 54"-56" 137-142 26
Catalyst Sports Bra - Warehouse Sale Sizing
Band (in) Hip (in)
XS 30" 33"
S 32" 37"
M 34" 40"
L 36" 43"
XL 38" 46"
XXL 40" 50"
XXXL 42" 53"
XXXXL 44" 55"
Catalyst Sports Bra - Warehouse Sale Sizing
Hips (in) Hips (cm) Pant
XS 30"-33" 76-84 0-2
S 34"-37" 86-94 4-6
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 18-20
XXXL 51"-53" 129-135 22-24
XXXXL 54"-56" 137-142 26
Catalyst Sports Bra - Warehouse Sale Sizing
Band (in)
XS 28"
S 30"
M 32"
L 34"
XL 36"
XXL 38"
Catalyst Sports Bra - Warehouse Sale Sizing
Hips (in) Kid's Pant Size (Ages 7-13) Teen Pant Size (Ages 14+)
XS 25"-27" 7 ---
S 28"-30" 8-10 ---
M 31"-35" 12-14 00-2
L 36"-40" 16-20 4-10
XL 41"-44" --- 12-16
XXL 45"-48" --- 18-20
Catalyst Sports Bra - Warehouse Sale Sizing
Band (in) Hip (in) Kid's Pant Size (Ages 7-13) Teen Pant Size (Ages 14+)
XS 28" 25"-27" 7 ---
S 30" 28"-30" 8-10 ---
M 32" 31"-35" 12-14 00-2
L 34" 36"-40" 16-20 4-10
XL 36" 41"-44" --- 12-16
XXL 38" 45"-48" --- 18-20
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30 Days to Wash and Wear
Knix products are eligible for return or exchange* within 30 days of delivery. We want to make sure you can give your new item time to mold to your shape and get comfortable. Do what you want to do in it, and wash it as much as you like. If you find the fit still isn’t right, message us to get a personal fit consultation before returning for the right size. * For sale items with a 20% or more discount, you may exchange for another item or store credit. All items purchased as part of the Knix Warehouse sale are final sale, meaning that no returns, exchanges or refunds can be accommodated.