5 and so that’s what I ordered. Good quality, great fit. I finally had settled on a Nina from VonMaur, but it was extremely uncomfortable as it was a regular width, and it made me twins with the bride. It is that good. i have used it for about 3 days. The friend I gave the second pair to has raved about how much they like them, their comfort and sound quality. Ill be wearing thin socks since my climate doesnt get snow. No problem at all - just a note to share. I have a sprayer that I use for spraying everything from weed killer to chlorine. A great purchase for anyone who has a problem with their Airpod Pros falling out.