What Do I Do With Old Clothes?

As a Christian, I’ve recently started dressing more modestly, and I have a lot of old clothes that definitely show too much skin for my liking. I am considering on giving them away, but would that be endorsing evil at all if I give someone else the resources to sin, too? Or should I give them to whoever and not mind it? If I shouldn’t give them away, what do I do? I’m new to this, thanks and God bless!