It's a constant inspiration for fashion designers: the kimono. From the traditional Japanese garment to the effortlessly chic cool-girl pyjamas of today, wearing a kimono proves that, with its flowing silhouette and V-neckline, you've got the key to femininity.

[Photo/Courtesy of Ron Sachs/DPA]

Actress Blake Lively (flanked by Ryan Reynolds) in a kimono-style robe by Ralph & Russo Couture for the White House State Dinner in May 2016.

[Photo/Courtesy of Patrick Kovarik/AFP]

James Tissot's 1864 painting La Japonaise au Bain at the Musée Guimet exhibition Kimono: Au Bonheur des Dames.

[Photo/Courtesy of Wikimedia Commons: Greg/Creative Commons]

A woman dressed in a Japanese kimono.

[Photo/Courtesy of Borgo de Nor]

The Borgo de Nor High Summer 2017 collection features a silk kimono in vibrant red with foliage print.