Top crown: Approximately 10cm in diameter Gusset: Approximately 2.5cm Brim (front): Approximately 4.5cm Brim (sides): Approximately 4cm Brim (back): Approximately 2cm Weight: Approximately 25g Purchased this year. I think it cost around 4000 yen. Unfortunately, it wasn't worn quietly. Worn for about 5 minutes. I think it can be worn all seasons. For those who will purchase at this price. I do not offer reservations, holds, or price negotiations, but thank you for your understanding.