This is "Lotte" by Bronte, Amsterdam. She comes with a smaller brim that can be folded up or down to suit you and the weather. Made from a paper-based fibre, polypropylene, it is also cool to wear. Can be rolled up for travel.
Medium head size is adjustable with pull-in ribbon.
It has a Lost and Found Label too. SPF 50+
Julia comes in two colours, Natural with black addition to the band, and Camel.