Exponential — a hat perfect for special occasions.Inspired by a mathematical gradient. The Exponential headpiece is made from an oversized red Sinamay disc and decorated with cotton-covered wire swirls which run across the face and above the crown.All of our headpieces are handmade in our studio in London. This headpiece can be customised in any colour/material combination. If you wish to try on this or any other hat options, please email us on [email protected] allow between 2-3 weeks for delivery.Details: This outer brim has a diameter of 45 centimetres and a circumference of 145 centimetres The inner button base measures 13 centimetres across The Exponential headpiece can be set on a handmade headband, a hair coloured elastic, or on prongs Each piece is crafted in London by hand, with care and meticulous attention to every detail.