The Best Ways to Support Breasts During Running

You might have stocked up on specialty workout clothes and custom running shoes, but until you have the proper support from a sports bra, you're not completely outfitted. Running entails a high degree of impact, which requires a high-impact bra to match. Putting extra thought into the right sports bra means you can focus less on your breasts and more on your endurance and speed during your next run.

  1. Sizing and Fit

    • Sports bras can be sized in one of two ways: either a T-shirt size, such as small, medium or large, or in bra sizing, such as 32B or 36C. If purchasing a T-shirt sized bra, you can just try on your regular size. If you're going for a cupped size, start with your current bra size. Then, check for proper fit by taking a few deep breaths to ensure that the bra is snug but not constricting. Signs of a too-small bra include bulging out of the bra or feeling constricted, or the bra digging into your armpits or riding up your back. So size up if you need to.

    Construction

    • The type of bra best for you usually depends on cup size. For instance, you can select a compression style -- where a tight bra is used to compress and support the breasts within a shelf-like construction -- if you normally wear an A or B cup. If you have larger breasts, you may prefer an encapsulated style with two separate cups, which offers more support. You may also choose underwire construction for fuller breasts.

    Fabric

    • The fabric that you choose for your sports bra is a matter of personal preference and comfort. Because you're bound to sweat between the breasts, looking for sweat-wicking fabrics can help you stay dry. Bras made from a cotton or polyester base and combined with Spandex, Lycra or another fabric that offers stretch and comfort work well. Because you need your sports bra to be both flexible and supportive, fabric blends can more easily serve dual purposes.

    Test Drive

    • Most stores will let you return a sports bra only if it's never been worn, so it's hard to test drive a bra. “Fitness” magazine suggests a few ways that you can't test a bra's function and comfort before you ever leave the store. Check the straps by pulling them away from your shoulders -- the less they move, the more supportive your bra will be when you run. Try sliding a finger between the band and your chest -- you shouldn't be able to pull more than an inch away from your body. If you can go farther, you may need to size up. And try moving around in the bra -- jump a few times and twist side to side to make sure you're comfortable and fully supported before you hit the road, sidewalk or trail.