 And what tends to happen over time is that odors and stains will build up. So what I recommend doing is using Persil Active Wear Clean detergent. So this is a new detergent specifically designed with technology to fight body oil and sweat to preserve those specific active wear fabrics. And it does all this while also helping maintain the fabric shape and stretch. If you have a stain on this fabric, you can also pre-treat with Active Clean and just to make sure you get that stain out.