PPC ads – 100000 impressions, only 2 orders – Help!

Hey guys just wanted some thoughts on how I can optimize my ads for my hats. I have 5 hats for sale that are all running ppc on the listings. Each hat is unique in pattern and colors. I’ve noticed that I have very high impressions but little clicks and sales. My pictures are pretty good as well with product photos as well as model ones. The listing has detailed bullet points and a keyword filled titled. Let me know your thoughts on what I should do to help convert more! Thanks 🙂