One of Queen Máxima’s signature hat shapes is the upswept ‘slice’- a wide brimmed picture hat with brim that soars high on one side of the hat above a rounded crown. Large brimmed picture hats can be difficult for royals to wear as the wide brim obstructs the all-important view of one’s royal face; the raised brim on this design not only alleviates this issue but it frames the wearer’s face in a kind of royal millinery halo. Máxima’s hats in this genre are usually simply trimmed with hatband around the base of the crown, leaving the dramatic shape of the hat to remain the focus of its impact.
Straw Versions, in the order they were introduced (I believe all by Belgian milliner Fabienne Delvigne):
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Natural, textured straw on April 1, 2006; Sienna orange on April 30, 2006
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Ivory with grey binding July 4, 2010; Textured orange on June 3, 2013; Palest pink on September 21, 2010;
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Natural beige on May 30, 2013; Tomato red on November 3, 2011; Peachy-beige on June 3, 2013;
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Warm gold on Sep 17, 2013; Ecru fringed on Sept 3, 2014; Fuchsia on King’s Day on April 27, 2015;
UPDATE- Since this post was published, Queen Máxima has added these additional straw hats in this style:
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Coppery brown on March 10, 2016; Black on November 7, 2016; Leaf green on June 5, 2018
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Deep magenta on May 29, 2019; Pale grey-blue on June 25, 2019
Raw Edge Straw Versions: Fabienne Delvigne has made two additional variations of this shape for Queen Máxima in straw with unfinished, fraying edges
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Dusky pink on May 22, 2004 at the Spanish royal wedding; Aqua on July 2, 2018 in Curaçao
Felt Versions, also in order of introduction (again, I believe all are by Belgian milliner Fabienne Delvigne):


Mushroom greige seen above on February 12, 2014; Magenta for Prinsjesdag in Sep 2012
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Charcoal on October 16, 2013; Medium grey on October 17, 2013; Deep purple on October 15, 2014

Camel on March 5, 2015
UPDATE- Since this post was published, Queen Máxima has added the following felt hats in this style:
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Pale grey on April 27, 2017; Deep magenta on Oct 24, 2017; Dark green on January 17, 2018
Queen Máxima has taken the upswept brim shape and attached it on several hats with square crowns (like this one) not included in this list, but that further illustrates her penchant for this particular brim shape. She remains a very popular figure when it comes to royal hats and her distinctive style is partly defined by the way she has embraced these slice picture hats. What do you think of this style? Do you prefer this hat in straw or in felt?