You aren't using fabric softener are you??? That's a no-no with drifit, under armour, all the good stuff....Read the labels.
We found out the hard way...my husband wears Under Amour under his police vest...He kept complaining about the smell. I used Downy in the rinse cycle...never thought anything of it....until that happened. I read the label...fabric softener inhibits the effectiveness of the fabric.
Have the same problem not just with Dri-fit clothing all gym wear. When they get that smell I just soak in nappy soaker, any brand and wash the smell disappears for a while and when it reappears repeat. It does the job. Doesn't seem to affect the clothing at all and is much more comfortable wearing. Believe me it doesn't mean you're dirty some of us just prespire more than others.
I swear by Oxi-Clean. My bras always seemed fresh and clean coming out of the dryer... but the minute I sweat in them there was a big F-U-N-K. I tried vinegar but that didn't work for me. Now I just add a scoop of Oxi-Clean (in addition to my regular detergent) to every load and my clothes have never gotten funkier than me since!!
cookiepie:I didn't even notice you were not suppose to use fabric softener with this stuff and I have been doing so for years.
Wait! I think there a couple of things going on here. One thing you should do first is Google search on "stripping softener fabric diaper" for lots of insight into odors and using fabric softeners.
Next, using fabric softener with anything containing cotton reduces it's absorbency - especially like towels. With the new dri-line type fabrics, using softener greatly reduces their moisture wicking action which is their main advantage over just cotton or synthetic. Using softener sheets in the dryer coats the dryer insides and it carries over from one load to the next. Maybe best thing with high tech fabrics is to not use wash cycle softener and hang them out to dry. Absorbency plus no static cling.
I just edited out a whole paragraph here after reading the Google results. Note that vinegar can help or cause an acrid smell depending on whether you have soft or hard water. There seems to be a preference for "oxy" bleaches over chlorine bleaches as noted in a previous post.
I had a sharp, pungent, acrid smell in my gym stuff until I changed from Tide to a less expensive store brand detergent and the smell seemed to go away. doh! not simple!