Why Your Workout Clothes Still Smell After Washing (And What May Help)

You wash your workout clothes after every session — so why do they still smell? You're not alone. Here's what's likely happening and what may help.

Why Synthetic Fabrics Hold Odors
Most athletic wear is made from synthetic fabrics like polyester and nylon. These materials are great for performance but tend to trap odor-causing bacteria in their fibers — even after a wash cycle.

Tips That May Help

Wash Inside-Out
Turning clothes inside-out exposes the inner surface — where sweat and bacteria accumulate most — to more direct contact with detergent.

Use a Sport-Specific Detergent
Regular detergents aren't always formulated for synthetic fabrics. Sport detergents are designed to break down the oils and bacteria that cause odors in athletic wear.

Air Dry When Possible
High heat from dryers can set odors into synthetic fabrics. Air drying is gentler and may help preserve the fabric's freshness longer.

Don't Leave Clothes in the Washer
Leaving wet clothes sitting in the washer — even for an hour — can contribute to mildew and odor. Transfer them to dry as soon as the cycle ends.

Use a FoldFresh Sheet for Storage
Between wears, storing clothes with a FoldFresh freshness sheet may help reduce odors in drawers and bags for 5–7 days. Results may vary. FoldFresh is not a substitute for regular washing.

Also read: How to Keep Clothes Fresh Between Washes | How to Keep Workout Clothes Smelling Fresh Longer | 5 Laundry Habits That Are Secretly Ruining Your Clothes