You don't want to ruin your leggings. That's why you have to be careful when washing them. According to Self, here are a few mistakes you might be making with your leggings:
The fabric that your leggings are made out of is sensitive. That means it can be damaged if you use warm water to clean them. Stick to using cool water.
It's best to let your leggings air dry. If you need to use the dryer, try using "tumble dry on low."
Oxygenated bleach is safe for your leggings. However, you don't want to use regular bleach on them. It could destroy the leggings you've grown to love.
Don't you hate the fuzz buildup on your leggings? If you do, then fabric softener will make your life a whole lot easier, because it'll reduce the chances of that fuzz sticking.
Don't leave your leggings in the hamper. As soon as you take them off, wash them. Otherwise, the dirt and sweat on them could end up soiling them.
You don't want to wear your leggings three times before washing them. You should clean them after every use.
Do you love your leggings?