Bombshell Sportswear Sizing Guide

You might have a size that you normally wear in sportswear, but it is always important to check our sizing guide to ensure you get the best fit possible. Our Bombshell Sportswear sizing guide is broken into two categories, sizing for tops and sizing for bottoms. Be sure to check both sections to get the best fit when choosing an outfit.


When choosing from our wide selection of tops, you want to get the best fit possible. To do this, the most important measurement to know is your cup size. There are three steps to finding out your cup size. First, measure your bust size while wearing a non-padded bra. You will want to measure the circumference of your bust in inches. Next, measure your rib cage size. While wearing your non-padded bra, measure around the bottom band of your bra and rib cage while exhaling. Your measuring tape should be snug, and you should measure in inches. Finally, take your bust size in inches and subtract your rib cage size in inches to determine your cup size. Use this difference to determine your cup size:

A 1 inch difference will be A cup.

A 2 inch difference will be B cup.

A 3 inch difference will be C cup

A 4 inch difference will be D cup.

A 5 inch difference will be DD/E cup.

A 6 inch difference will be DDD cup.

With your rib cage size already measured, now you can determine what your band size will be.

25 to 26 inches: 30.

27 to 28 inches: 32.

29 to 30 inches: 34.

31 to 32 inches: 36.

33 to 34 inches: 38.

35 to 36 inches: 40.

With these measurements in hand, you can find the top that will fit you perfectly. Our recommendations are:

XS: 32A and 32B

XS or S: 32A

S: 32C, 32D, 32DD, 34B, 34C, 36A, 36B

S or M: 34D, 36C

M: 34DD, 36D, 36DD, 38A, 38B

L: 38C, 38D, 38DD

XL: 38DDD, 40C, 40DD

Each of our tops also includes a guide determining how true to size the tops run in case you are in between two sizes to help you decide which way to go. Ensuring you are wearing the correct size top is important when choosing compression wear. If you go too big, you will lose the benefits of your sportswear, including the amount of hold and shaping you will experience. Our Second Skin fabrics should hug your body and move with you easily, so make sure you go in with the right sizing. To get the best support out of your sports bra, the band of your sports bra should always fit snugly around your rib cage, never on your breasts.


For our bottoms, the two most important measurements to know are your height and weight. First, determine your height in feet or centimeters. Next, find out your weight in pounds or kilograms. Once you have both measurements, our easy to use, color-coded grid will help you find a pair of leggings that will fit you perfectly. Our chart covers women from 90 to over 190 pounds (from 40 to over 86 kilograms) and from 4'11" to 6'2" (150 to 188 centimeters). Available sizes in our bottoms range from XXS up to XXL.

If you find yourself between two sizes and unsure which to go with, try going a size above to ensure your leggings will be squat-proof. Wearing the right size leggings is vital to ensuring you have a squat-proof pair of workout pants. Most leggings are able to stretch about 1 to 3 inches, plus or minus a few inches depending on the pair. Once you stretch past their ability, they will start to look see-through. To avoid this, make sure you are using accurate measurements when checking our size chart. Wearing a size too small will stretch out the elasticity of your leggings over time, reducing their ability to maintain their shape. This is caused by Spandex being pushed past its natural stretching point for too long or too often. Size is also important when choosing your compression leggings. Wearing a size too big will not give you the benefits you want from your leggings, including less hold and a looser fit. Each of our bottoms includes a guide showing how true to size each pair is, so you can determine whether you need to go a size down or up depending on the pair.