Hawkins Collection Events Hat from Ascot Hats 4U. From the 2017 Hawkins Spring / Summer Collection, this wide brimmed hat is made from sinamay with matching sinamay loops, shaped feathers and beads. It measures approximately 41cm across the brim and has an internal size adjuster and makeup protector strip for added convenience. This hat has an attractive modern style with a slight upturn to the brim on one side and matching sinamay hat banding. It is beautifully made using multiple sinamay layers and finished to a very high standard.