First of all, buy a bottle of Revivex and secondly throw in the washing machine. If you must, use a very very light detergent, I personally would throw them in the there on the warm water setting and just let the washing machine do its job.

Like I said, only use detergent as a last resort as it can harm the Entrant and its breathability and water replencey/resistency (sp???).

After you take them out of the wash, hang them up immediatly and cover with Revivex while still wet. Take a blow dryer to them to bake in the Revivex and your waders will be like new!