Putting on this sports bra is light work. Made with encapsulated cups for maximum support and a locked-in feel, you’ll be covered to go the extra mile. Ventilation in the front helps you stay cool throughout your workout. And the traditional adjustable hook-and-eye back closure with five rows lets you easily find the perfect fit.
Yes, our Revolution Bra has removable cups.
The way that we size our bras at Knix is to allow different body types to fit into one size. The flexible 5 row hook & eye back closure accommodates your personal preference and level of comfort for the underband.
No, all Knix bras are wireless! Wireless bras give you freedom to move and feel your most comfortable and confident self.
Yes, you do.
Your underband measurement will equal an alpha size.
For example:
XXS =28Band, XS=30Band, S=32Band, M=34Band, L=36Band, XL=38Band, XXL=40Band, XXXL= 42Band
Regular size cups cover = A - DD
Plus sizes cups cover = E - G
We recommend scheduling a Virtual Fitting with a Knix Expert or consulting with a team member in-store.
| Comfort |
Rated 4 out of 5
|
| Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
|
| Support |
Rated 4 out of 5
|
| Effectiveness |
Rated 4 out of 5
|
| Ease of Use |
Rated 3 out of 5
|
Great fit for my large breasts feels good to work out!
| Comfort |
Rated 4 out of 5
|
|---|---|
| Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
|
| Support |
Rated 4 out of 5
|
| Effectiveness |
Rated 5 out of 5
|
| Ease of Use |
Rated 5 out of 5
|
I have really enjoyed the underwear and other bras. I purchased this one to use post surgery. The two times I’ve tried to put it on, I wasn’t able to manage the zipper and could barely get the bra off. The fabric is super soft and I wish it worked out but unfortunately, this was not a successful purchase for me.
| Comfort |
Rated 1 out of 5
|
|---|---|
| Fit |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
|
| Support |
Rated 4 out of 5
|
I bought this on a whim because I needed a new sports bra. I put it on and it supports me amazingly. Ive never had a bra that keeps my 36F boobs in and them not move around.
| Band (in) | Fits Cups | Waist (in) | |
|---|---|---|---|
| S | 32" | A-DD | 27" |
| S+ | 32" | E-G | 27" |
| M | 34" | A-DD | 30" |
| M+ | 34" | E-G | 30" |
| L | 36" | A-DD | 33" |
| L+ | 36" | E-G | 33" |
| XL | 38" | A-DD | 38" |
| XL+ | 38" | E-G | 38" |
| XXL | 40" | A-DD | 43" |
| XXL+ | 40" | E-G | 43" |
| XXXL | 42" | A-DD | 48" |
| XXXL+ | 42" | E-G | 48" |
*Cup ranges from A-G
| Waist (in) | Hip (in) | Pants | |
|---|---|---|---|
| S | 27" | 34"-37" | 4-6 |
| S+ | 27" | 34"-37" | 4-6 |
| M | 30" | 38"-41" | 8-10 |
| M+ | 30" | 38"-41" | 8-10 |
| L | 33" | 42"-44" | 12-14 |
| L+ | 33" | 42"-44" | 12-14 |
| XL | 38" | 45"-47" | 16-18 |
| XL+ | 38" | 45"-47" | 16-18 |
| XXL | 43" | 48"-50" | 18-20 |
| XXL+ | 43" | 48"-50" | 18-20 |
| XXXL | 48" | 51"-53" | 22-24 |
| XXXL+ | 48" | 51"-53" | 22-24 |
| 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" |
| Waist (in) | Hip (in) | Pants | |
|---|---|---|---|
| XS | 24" | 33" | 0-2 |
| S | 27" | 37" | 4-6 |
| M | 30" | 40" | 8-10 |
| L | 33" | 43" | 12-14 |
| XL | 38" | 46" | 16-18 |
| XXL | 43" | 50" | 18-20 |
| XXXL | 48" | 53" | 22-24 |
| XXXXL | 52" | 55" | 26 |
| Bust (in) | Waist (in) | Hip (in) | |
|---|---|---|---|
| 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" |
| Bust (in) | Waist (in) | Hip (in) | |
|---|---|---|---|
| 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" |
| Hip (in) | Pant | |
|---|---|---|
| XS | 30"-33" | 00-0 |
| S | 34"-37" | 2-4 |
| M | 38"-41" | 6-8 |
| L | 42"-44" | 10-12 |
| XL | 45"-47" | 14-16 |
| XXL | 48"-50" | 18-20 |
| XXXL | 51"-53" | 22-24 |
| XXXXL | 54"-56" | 26 |
| Hip (in) | Pants | |
|---|---|---|
| S/M | 33-41" | 2-10 |
| L/XL | 42-47" | 12-18 |
| XXL/XXXL | 51-53" | 24-26 |
| 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
| Waist (in) | Hip (in) | Pants | |
|---|---|---|---|
| S | 27" | 33"-37" | 2-6 |
| S+ | 27" | 33"-37" | 2-6 |
| M | 30" | 38"-41" | 8-10 |
| M+ | 30" | 38"-41" | 8-10 |
| L | 33" | 42"-44" | 12-14 |
| L+ | 33" | 42"-44" | 12-14 |
| XL | 38" | 45"-47" | 16-18 |
| XL+ | 38" | 45"-47" | 16-18 |
| XXL | 43" | 48"-50" | 20-22 |
| XXL+ | 43" | 48"-50" | 20-22 |
| XXXL | 48" | 51"-53" | 24-26 |
| XXXL+ | 48" | 51"-53" | 24-26 |
*If you're larger on the bottom, we recommend you size up
| 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
| Waist (in) | Hip (in) | Pants | |
|---|---|---|---|
| S | 27" | 33"-37" | 2-6 |
| S+ | 27" | 33"-37" | 2-6 |
| M | 30" | 38"-41" | 8-10 |
| M+ | 30" | 38"-41" | 8-10 |
| L | 33" | 42"-44" | 12-14 |
| L+ | 33" | 42"-44" | 12-14 |
| XL | 38" | 45"-47" | 16-18 |
| XL+ | 38" | 45"-47" | 16-18 |
| XXL | 43" | 48"-50" | 20-22 |
| XXL+ | 43" | 48"-50" | 20-22 |
| XXXL | 48" | 51"-53" | 24-26 |
| XXXL+ | 48" | 51"-53" | 24-26 |
*If you're larger on the bottom, we recommend you size up
Wearing an unpadded bra, wrap a measuring tape around the top of your ribcage.
You’re looking for a snug fit - so we recommend tightening on the exhale and noting the smallest measurement in inches.
To find your Cup measurement, wrap the measuring tape around the fullest part of your chest, making sure the measuring tape is parallel to the floor. Relax your shoulders and measure on the inch.
If your band measures more than 33, when measuring the cup, pull it a little bit snug before measuring.
Still have questions? Book a Virtual Fitting with our amazing customer experience team!
Still have questions? Book a Virtual Fitting with our amazing customer experience team!
| Waist (in) | Hip (in) | Pant Size | |
|---|---|---|---|
| XS | 24" | 30"-33" | 0-2 |
| S | 27" | 33"-37" | 2-6 |
| M | 30" | 38"-41" | 8-10 |
| L | 33" | 42"-44" | 12-14 |
| XL | 38" | 45"-47" | 16-18 |
| XXL | 43" | 48"-50" | 20-22 |
| XXXL | 48" | 51"-53" | 24-26 |
| XXXXL | 52" | 54"-56" | 26 |
| 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | |
|---|---|---|---|---|---|---|---|---|
| A | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| B | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| C | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| D | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| DD | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| E | XS+ | S+ | M+ | L+ | XL+ | XXL+ | XXXL+ | XXXXL+ |
| F | XS+ | S+ | M+ | L+ | XL+ | XXL+ | XXXL+ | XXXXL+ |
| G | XS+ | S+ | M+ | L+ | XL+ | XXL+ | XXXL+ | XXXXL+ |
| Hip (in) | Pant Size | |
|---|---|---|
| XS | 30"-33" | 0-2 |
| XS+ | 30"-33" | 0-2 |
| 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 |
| XXXXL | 54"-56" | 26 |
| XXXXL+ | 54"-56" | 26 |
| 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | |
|---|---|---|---|---|---|---|---|---|
| A | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| B | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| C | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| D | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| DD | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| E | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| F | XS+ | S+ | M+ | L+ | XL+ | XXL+ | XXXL+ | XXXXL+ |
| G | XS+ | S+ | M+ | L+ | XL+ | XXL+ | XXXL+ | XXXXL+ |
| Hip (in) | Pant Size | |
|---|---|---|
| XS | 30"-33" | 0-2 |
| XS+ | 30"-33" | 0-2 |
| 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 |
| XXXXL | 54"-56" | 26 |
| XXXXL+ | 54"-56" | 26 |
| 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | |
|---|---|---|---|---|---|---|---|---|
| A | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| B | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| C | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| D | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| DD | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| E | XS | S | M | L | XL | XXL | XXXL | XXXXL |
| Hip (in) | Pant Size | |
|---|---|---|
| XS | 30"-33" | 0-2 |
| XS+ | 30"-33" | 0-2 |
| 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 |
| XXXXL | 54"-56" | 26 |
| XXXXL+ | 54"-56" | 26 |
| 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | |
|---|---|---|---|---|---|---|---|---|---|
| A | XS | S | M | L | XL | XXL | XXXL | XXXXL | |
| B | XS | S | M | L | XL | XXL | XXXL | XXXXL | |
| C | XS | S | M | L | XL | XXL | XXXL | XXXXL | |
| D | XS | S | M | L | XL | XXL | XXXL | XXXXL | |
| DD | XS | S | M | L | XL | XXL | XXXL | XXXXL | |
| E | XS | S | M | L | XL | XXL | XXXL | XXXXL | |
| F | XS+ | S+ | M+ | L+ | XL+ | XXL+ | XXXL+ | XXXXL+ | |
| G | XS+ | S+ | M+ | L+ | XL+ | XXL+ | XXXL+ | XXXXL+ |
| Hip (in) | Pant Size | |
|---|---|---|
| XS | 30"-33" | 0-2 |
| XS+ | 30"-33" | 0-2 |
| 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 |
| XXXXL | 54"-56" | 26 |
| XXXXL+ | 54"-56" | 26 |
| Hip (in) | |
|---|---|
| XS/S | 30"-37" |
| M/L | 38"-44" |
| XL/XXL | 45"-50" |
| XXXL/XXXXL | 51"-56" |
| Knix Size | Shoe Size |
|---|---|
| S/M | 6-9 |
| L/XL | 10-11.5 |
| OS | 6-10 |
Wearing an unpadded bra, wrap a measuring tape around the top of your ribcage.
You’re looking for a snug fit - so we recommend tightening on the exhale and noting the smallest measurement in inches.
To find your Cup measurement, wrap the measuring tape around the fullest part of your chest, making sure the measuring tape is parallel to the floor. Relax your shoulders and measure on the inch.
If your band measures more than 33, when measuring the cup, pull it a little bit snug before measuring.
Still have questions? Book a Virtual Fitting with our amazing customer experience team!
Still have questions? Book a Virtual Fitting with our amazing customer experience team!
| 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 |
| Cups | |
|---|---|
| M | A-D |
| XL | DD-G |
| KT Size | Hip | Kids Pant Size | Adult Pant Size |
|---|---|---|---|
| XXS | 25" - 27" | 7 | --- |
| XS | 28" - 30" | 8 - 10 | --- |
| S | 31" - 34" | 12 - 14 | 00 - 2 |
| M | 35” - 38” | 16 - 20 | 4 - 8 |
| L | 39” - 42” | --- | 10 - 14 |
| XL | 43” - 46” | --- | 16 - 18 |
| XXL | 47” - 50” | --- | 20 - 22 |
1. Hip
Stand with your feet together and measure around the widest part of your hips and bottom. Keep the measuring tape parallel to the floor.| 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 |
| Band (in) | |
|---|---|
| XS | 28" |
| S | 30" |
| M | 32" |
| L | 34" |
| XL | 36" |
| XXL | 38" |
| Hip (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 |
| KT SIZE | Band (in) | Hips (in) | Kids Pant Size | Adult Pant Size |
|---|---|---|---|---|
| XXS | 23 3/4"- 25 1/4" | 25" - 27" | 7 | --- |
| XS | 25 1/4" - 26 3/4" | 28" - 30" | 8 - 10 | --- |
| S | 26 3/4" - 28 1/4" | 31" - 34" | 12 - 14 | 00 - 2 |
| M | 28 1/4" - 29 3/4" | 35" - 38" | 16 - 20 | 4 - 8 |
| L | 29 3/4" - 31 1/2" | 39" - 42" | --- | 10 - 14 |
| XL | 31 1/2" - 33 1/2" | 43"-46" | --- | 16 - 18 |
| XXL | 33 1/2" - 35 1/2" | 47" - 50" | --- | 20 - 22 |
1. Band
First, measure around the torso right below the breast
2. Hips
Stand with your feet together and measure around the widest part of your hips and bottom. Keep the measuring tape parallel to the floor.
| 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" |
| KT Size | Band | Hips |
|---|---|---|
| XS | 28" | 25"-27" |
| S | 30" | 28"-30" |
| M | 32" | 31"-35" |
| L | 34" | 36"-40" |
| XL | 36" | 41"-44" |
| XXL | 38" | 45"-48" |
1. Band
First, measure around the torso right below the breast
2. Hips
Stand with your feet together and measure around the widest part of your hips and bottom. Keep the measuring tape parallel to the floor.
| Size | Hips | Height | Weight |
|---|---|---|---|
| XS/S | 25"-30" | 4'2" - 5'1" | 65 - 100 lbs |
| M/L | 31"-40" | 4'9" - 5'6" | 105-130 lbs |
| XL/XXL | 41"-48" | 4'11" - 5'6" | 135 - 170 lbs |
