5 but in this style, I wear a 9. 5 is my size and so glad I ordered a 7. Theres a small boost in soundstage and clarity. These Crocs are incredibly cute! The dimming censer works great, with dirty hands, its so easy to turn them on and not get food all over, plus set the lighting where I want by just holding my hand under the censer and it remembers it for the next time. Otherwise the product looks very premium. Quite expensive but still cheaper than any store. I was initially unsure about paying so much but it was worth it. The sounds quality in these are mind blowing they have this deep rich base with very premium sound and for price I feel like it couldn?t get any better. These headphones fit my head really good (I corrected him with "well").