How to Get Rid of Sweat Smell in Workout Clothes

Athletic clothes made from polyester, nylon and spandex are great for sweating, but they tend to hold onto odor, even after washing. That's because body oils get trapped in synthetic fibers, and bacteria feed on them.

Why Gym Clothes Stay Smelly

Synthetic fibers attract and hold oils.
Fabric softener traps odors in the fibers.
Sweaty clothes left in a bag or hamper let bacteria multiply.

Step 1: Pre-Soak in Vinegar

Fill a sink or tub with cool water and add 1 cup of white vinegar. Turn clothes inside out and soak for 30 minutes. Vinegar helps break down odor-causing residue.

Step 2: Wash with a Sports Detergent

Wash in cool or warm water (check labels) with a detergent designed for activewear, or a good enzyme detergent. Don't overload the machine.

Step 3: Skip Fabric Softener

Softener coats technical fabrics, trapping odor and reducing their moisture-wicking ability.

Step 4: Air-Dry

Hang activewear to dry. High dryer heat can damage elastic and set in odors.

Stubborn Odors

Soak clothes in warm water with oxygen bleach for a few hours before washing, if the fabric allows it.

Daily Habits That Help

Don't leave sweaty clothes in a gym bag. Hang them to air out until laundry day.
Wash them as soon as possible.
Wash inside out so the dirtiest side gets cleaned best.

FAQ

Can I add baking soda? Yes, 1/2 cup of baking soda in the wash can help with odors.

Why does the smell come back when I sweat? Residue is still trapped. Repeat the vinegar soak and use less detergent.