The Wintergreen Sportswear Pre-Soak is an effective pre-soak for your sportswear eliminating lingering odours that normal washing can't. It is safe on all fabrics so you can use it on spandex, nylon and cotton. It is simple to use. All you need to do is let the clothes soak in the solution for 20min before washing. The 1l bottle makes 50l and can even be used multiple times once dissolved.