Laundry stripping is an effective way to deep clean well used clothing (like gym gear), linens and towels!
 
This method requires several hours of soaking to get rid of leftover detergent, fabric softener, minerals from hard water and natural body oils that have collected on textiles over a period of time.
 
How to use:  Add 4-8 scoops of powder into bathtub or large sink of hot water. Mix around to dissolve then add laundry. Allow to soak for 4-6 hours, mixing occasionally. Rinse, wring and finish in washing machine.