Concert Attire

Ladies, help me out please! In the last 6 years or so, I feel like most of the concerts I've attended have been during the summer, so dressing for a hot sweaty concert has been easy. What are we wearing to comfortably sweat our asses off, but not freeze to death in between parking and the venue? I'm going to the Spiritbox concert tomorrow in Lancaster. Courtney had posted some photos of her tour outfits for inspiration for people to wear at the concerts, if they want. She wears a lot of leather! I have a leather jacket, but that gets hot and I don't know if I want to hold that the whole show. Any suggestions or what you've worn so I can get some ideas is greatly appreciated!