A recent study1 reported, “9.5 million women in the UK are not supporting their breasts properly when they run.” That stat does not shock me at all, especially when we want to look cute, fashionable 😊
Why wear a sports bra?
If you want to help keep those breasts healthy, then wear a sports bra that fits! Research shows that on average, a woman’s breast moves 9.08cm with every stride when running. The average breast weighs between 250 and 300g and any unsupported movement (ie: Running) and causes three-dimensional movement: up-down, in-out, and side-to-side.
This can result in discomfort, chafing and strain on the breasts’ supportive tissue, called the Cooper’s ligaments, which can eventually lead to sagging if not supported. Once stretched, the Cooper’s ligaments cannot revert back to their original position, so it’s important to support your breasts, no matter how far you’re running.
What size running sports bra should I buy?
If you have never worn a sports bra before, start with your usual bra size but be open to trying on different sizes before you find the perfect fit. Different bras will fit differently, so try a few before finding your perfect brand. There are sports bra brands that you can buy according to YOUR size and most specialty running stores carry that brand, such as Moving Comfort, and offer a proper fitting to size you!
How should a sports bra fit?
The first sign that you’ve got the right size when it comes to sports bras is the back band is at the same level all the way round. If it rides up, it’s too big. Your sports bra should fit snugly, but not be too tight that you can’t breathe and you should be able to get no more than one finger under the band or in the cup. And you should NEVER have to wear 2 Sports bras to keep you supported contrary to what you may have heard, seen, or tried yourself. Further, the bra you wear for yoga is not the same bra you should wear for running. There are different bras offer different levels of support. The type you need will depend on your cup size and the type of exercise you do.
1. Low-impact sports bras, used for stretching or walking, are often cut like a crop-top and are, on the whole, made from thinner material.
2. Medium-impact sports bras are a mix between the two, these can sometimes be used for running, but are often not suited to larger-breasted women.
3. High-impact bras (for running) generally use less stretchy material, include supportive seams and overlays and are sometimes even underwired for larger breasts.
How long does a sports bra last?
Just like your running shoes, a sports bra has a termination life too! You’ll need to replace your sports bra every few months, or after around 30-40 washes. As a rule of thumb – you will need three new bras for every one pair of running shoes. The technical fabric of your sports bra will wear in the washing cycle, and its elasticity will diminish during use. To prolong the life of your sports bra, try not to tumble dry it: the heat will destroy the fabric on your bra!








Figure 1
Figure 2