This way your sportswear will last the longest.
Wash your sportswear without fabric softener. Fabric softener can affect your sportswear, especially the Lycra items. Residual fabric softener means that moisture and sweat can be removed less quickly.
It is best to wash your sportswear with liquid detergent and a dash of vinegar. Vinegar disinfects, softens and neutralizes sweat odors. Don't be too generous with detergent, a little bit is enough.
Can't get the odors out of your clothes with a regular wash? Let the sportswear soak in cold water with a dash of vinegar before putting them in the usual washing program.
Doesn't it all help? Then your sportswear may simply need to be replaced.