I have a silicone swim cap that I received as a gift! It's unopened, so I can't confirm the size. The person who gave it to me said it's ※F size! It's new, unused, and an Itoman design, so it's not for sale! If you want to check the size, I can measure it by opening it (in that case, I will open it). Although it's unopened, the bag has some wrinkles! It has been stored in a regular household, so please purchase it only if you understand this. ※No claims and no returns, please! Feel free to ask any questions or make offers! Color: Black