Our style guru caught up with Paul Costelloe to hear how his son and Paris inspired his spring/summer collection of pastels. With an array of sketches to showcase his work, the designer is excited for his 40th year anniversary at London Fashion Week Designer Paul Costelloe is set to showcase his Spring/Summer 25 Collection at London Fashion Week this week. Photo: Mike Marsland/WireImage An exclusive sketch hand-drawn by Paul Costelloe of his Spring/Summer 25 Collection.

Sketch: Courtesy of Paul Costelloe Paul Costelloe's synonymous relaxed tailoring will feature in his Spring/Summer 25 Collection. Sketch: Courtesy of Paul Costelloe “I imagined a woman sitting outside Café de Flore, drinking her coffee, waiting for her boyfriend, looking very French," Paul Costelloe says of his latest collection. Sketch: Courtesy of Paul Costelloe “This collection is fresh, young, sprezzatura (an Italian word meaning to make one’s actions seem effortless),” says Paul Costelloe.

Sketch: Courtesy of Paul Costelloe Paul Costelloe's hand-drawn invite for his Spring/Summer 25 Collection show “It’s all been running so smoothly, we’re ahead of time. We could show tomorrow,” says Paul Costelloe. This is a statement rarely heard at London Fashion Week.

Often models are pinned and prodded right up until the moment they step on the runway. So what has the designer feeling so serene? He’s embraced the beauty of simplicity. “It’s a non-statement, easy collection, rather than killing.