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Sports Bra 101

Get to know your sports bra! Here’s what you need to know when
buying your next piece.

Anatomy of a Sports Bra

Measure Guide

Your regular bra size and sports bra size are typically the same measurements.

To determine your bra size you must measure around the bust and rib cage.

Bust Size

Measure loosely around your bust at the fullest part. Be sure the tape stays straight across your back. Round up to nearest whole number.

Band Size

With a normal bra on, measure your rib cage under your breasts or just below the band of the bra you’re wearing. Take this measurement and add 5. Round up to the nearest even number to your band size.

Cup Size

Subtract your band size from your bust measurement. 1” difference = A cup, 2” difference = B cup, 3” = C cup, 4” = D cup. 5” = DD etc.

Is it the right fit?

Band test:

If you lift your arms up, if the band creeps up, it’s too big. If the band rides up in the back, the straps are too tight or the bra is too small.Band should not be able to be pulled more than 1 inch from your chest

Spillage test:

There should be no spillage over the top or in the sides. Try bending over, leaning side to side.

Discomfort test:

The bra should not dig in or chafe anywhere. In general, the bra should fit slightly tighter but not too tight that its uncomfortable to breath.If you get stuck in the bra, it’s too small.

Movement test:

Check for access movement by jumping, running, streching in place. The bra should easily move with your body.

Fabric test:



What Type Of Bra Is Best For You?

Low Impact:

Thinner straps and not intended for rigorous movements but will provide ample support for those with a size A cup. Low impact bras are easier to take on and off as well as often feature fun, intricate straps to show off during your workout. They are perfect for walking, yoga and strength training.

Medium Impact:

Medium impact bra offer great support for those with a size B or C cup. They have thinner straps than high-impact but there are multiple layers of fabric for extra padding, comfort and support. Most common with intricate strappy back pattern straps. Great for hiking, cycling and skiing

High Impact:

Maximum control for vigorous sports like running, dance and aerobics, usually with wider straps and reinforced fabric for higher degree of support. High impact bras are also the most ideal those with cup size D or above. These bras will ensure you are supported throughout your entire workout.


Light and casual, bralettes are perfect for lounging or to wear under your day-to-day outfits. They are a great alternative to the typical bra for those with a size A or B cup.


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0 XXS 31.5 23 - 24.5 31 - 33 30 0 1 2
0 XS 32.5 24.5 - 25.5 33 - 35 32 2 3 4
2 S 33.5 25.5 - 27 34 - 36 34 4 5 6
4 S/M 34.5 27 - 28 35 - 37 36 6 7 8
6 M 35.5 28 - 29 36 - 38 38 8 9 10
8 M/L 36.5 29 - 30 37 - 39 40 10 11 12
10 L 37.5 30 - 31 39 - 41 42 12 13 14
12 XL 39 31 - 33 40 - 42 44 14 15 16


Sizing Guide - ModelBUST 

Measure the circumference of your chest. Place one end of the tape measure at the fullest part of your bust.  Wrap it around (under your armpits, around your shoulder blades, and back to the front) to get the measurement.



Measure the circumference of your waist. Use the tape to circle your waist (sort of like a belt would) at your natural waistline. which is located above your belly button and below your rib cage.



Measure the circumference of your hips. Start at one hip and wrap the tape measure around your rear, around the other hip, and back to where you started. Make sure the tape is over the largest part of your buttocks.



This is the distance from the uppermost inner part of your thigh to the bottom of your ankle.



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