How to Wash Workout Clothes and Gym Gear

Synthetic fabrics like polyester, nylon, and spandex are designed to pull moisture away from your skin. That's what makes them great for the gym. It's also what makes them hold onto odor in ways that cotton doesn't. The bacteria from sweat get trapped inside the weave, and if you wash them wrong, you seal the problem in instead of washing it out.

Hot water breaks down the elastic fibers in compression gear and performance fabric over time. Leggings lose their shape, sports bras lose their structure, and the moisture-wicking finish that makes workout gear worth buying degrades faster.

Cold water cleans synthetic fabrics just as effectively and preserves the stretch. Wash workout clothes on a gentle or delicate cycle in cold water, and they'll last significantly longer.

Fabric softener is one of the worst things you can use on gym clothes. It coats the fibers to make them feel soft, but that coating traps bacteria and blocks the fabric's ability to breathe. The result is workout gear that smells fine out of the dryer but starts to stink the moment you break a sweat.

If you want a natural odor booster, add half a cup of white vinegar to the wash cycle instead. It neutralizes bacteria without leaving any residue.

Most of the bacteria and odor in workout clothes lives on the inside, where your skin contacts the fabric. Turning everything inside out before washing puts that surface directly in contact with the water and detergent.

This is an easy habit to build and it makes a real difference over time, especially for compression shorts, sports bras, and any gear that fits close to the body. It pairs well with the advice in our post on making clothes last longer.

Compression gear and synthetic fabrics need room to move through water to get clean. A packed drum means the detergent can't fully penetrate the fabric and the rinse cycle can't flush it back out. You end up with clothes that still smell and a buildup of soap residue over time.

If you have a big gym bag to work through, our large-capacity washers at Midvale Express give you the drum space to actually clean a full load instead of jamming it into a small machine at home.

High dryer heat is hard on spandex and elastic. Even medium heat over repeated cycles shortens the life of compression gear. If you have time, hang workout clothes to air dry instead. They dry fast because of how they're made.

When you do use a dryer, low heat or a no-heat air fluff setting is the right choice. It takes longer, but it keeps the fit and function of the garment intact.

If gym clothes are coming out of the wash smelling off, the issue is usually detergent buildup, a dirty machine, or both. Our post on why laundry still smells after washing covers the most common causes and fixes.

If home treatment isn't cutting it, bring your gym bag to Midvale Express Laundromat. Our Wash & Fold service handles workout gear regularly and uses the right temperature and cycle for synthetic fabrics.