I have found this mesh bag really useful! It increases the longevity of the pants in the washing machine, but honestly it's just so helpful for keeping the pants in after use. After a quick handwash, I put my used pants in the bag. Then, when it's time to put them in washing machine, I can simply pop the bag in. I recommend it as an inexpensive add-on to a WUKA order to make the routine of WUKA wearing and washing flow more smoothly.